Seems like you Muslims revere your god's so called prophet as much as god himself.
Isn't that some kind of sin?
Muslims consider Muhammad to be a prophet, no better than Moses, Abraham, Isaac, David or Jesus. The only distinction accorded Muhammad is that he is considered by Muslims to be the last prophet. Here are a few verses from the Qur'an (M.H. Shakir translation):
[2.136] Say: We believe in Allah and (in) that which had been revealed to us, and (in) that which was revealed to Ibrahim and Ismail and Ishaq and Yaqoub and the tribes, and (in) that which was given to Musa and Isa, and (in) that which was given to the prophets from their Lord, we do not make any distinction between any of them, and to Him do we submit.
[3.84] Say: We believe in Allah and what has been revealed to us, and what was revealed to Ibrahim and Ismail and Ishaq and Yaqoub and the tribes, and what was given to Musa and Isa and to the prophets from their Lord; we do not make any distinction between any of them, and to Him do we submit.
[33.40] Muhammad is not the father of any of your men, but he is the Apostle of Allah and the Last of the prophets; and Allah is cognizant of all things.
I don't know where you got the idea that Muslims consider Muhammad to be God, but it certainly wasn't from the Qur'an.
Note: in the above suras (verses) Musa is Moses, Ibrahim is Abraham, Ishaq is Isaac, Ismail is Ishmael, Yaqoub is Jacob and Isa is Jesus.