146

146 = 2 x 73.

The absolute difference between any two digits of 146 is a prime number (2, 3, 5).

146 is 222 in base 8.

146 is an octahedral number, which has the form (2n³ + n)/3.

146 is an untouchable number: No integer's proper divisors add up to 146.

146 has a representation as a sum of two squares: 146 = 5² + 11².


The Grand Union Canal Race is a 146-mile ultramarathon from Birmingham to London.

Source: Prime Curios!