1651

1651 = 13 x 127.

1651 is 11001110011 in base 2 (binary) (A048700).

1651 is a heptagonal number (A000566).

1651 is a potential magic constant of a 7 x 7 magic squares composed of consecutive primes (A188536).

1651 is the sum of eight but not fewer squared primes (A183215).

Source: On-Line Encyclopedia of Integer Sequences