231250136 has 24 divisors (see below), whose sum is σ = 469515780. Its totient is φ = 106730208.

The previous prime is 231250081. The next prime is 231250157. The reversal of 231250136 is 631052132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84170 + ... + 86873.

Almost surely, 2^231250136 is an apocalyptic number.

231250136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

231250136 is an abundant number, since it is smaller than the sum of its proper divisors (238265644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231250136 is a wasteful number, since it uses less digits than its factorization.

231250136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171075 (or 171058 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 231250136 is about 15206.9107973973. The cubic root of 231250136 is about 613.8006334231.

The spelling of 231250136 in words is "two hundred thirty-one million, two hundred fifty thousand, one hundred thirty-six".