not a mathematician
I don't think God is a mathematician because although he is omniscient (or whatever omni- all knowing is), Math is mankind's way to quantify how things are, so God probably doesn't deal in numbers. He gave us the ability to use numbers to explain to each other how large, heavy, or what path things are, but he didn't use math to create these things (thus, since he doesn't work in mathematical terms, he cannot, by definition, be a mathematician).
"In the beginning God created the heavens and the earth." - Genesis 1:1