One Thousand Paintings

This is interesting... The fellow has painted the numbers between (and including) 1 & 1,000 and is selling each of them online. Each number has information (from wikipedia) posted about whatever mathematical properties might be associated with it. The fellow has sold over 700 of the numbers already. He also includes estimates of what your number might be worth after say, 800-900 have sold. I looked, if I could afford such a painting the numbers I might choose have already sold.

One Thousand Paintings