1099

1099 = 7 x 157.

1099 is 777 in base 12.

1099 = 1 + 0 + 999 + 99.

1099 and 1099² = 1,207,801 have the same digit sum: 1 + 0 + 9 + 9 = 1 + 2 + 0 + 7 + 8 + 0 + 1 = 19.

1099 is the sum of seven consecutive primes: 1099 = 139 + 149 + 151 + 157 + 163 + 167 + 173.

In the United States the 1099 IRS tax form shows how much an independent contractor made from a certain business.

Source: What's Special About This Number?