142

142 = 2 x 71.

142 has the unique representation 142 = 5² + 6² + 9² as the sum of three squares.

142 is the smallest semiprime (having exactly two prime factors) whose sum of divisors is a cube: 1 + 2 + 71 + 142 = 216.

142 is the number of integer partitions of 25 into distinct parts.

142 is the number of planar graphs with six vertices.

Cartoon character Bugs Bunny once correctly calculated 1297 times 142 in his head and said, "If there's one thing we wabbits can do, it's multiply."

Source: Number Gossip