231057356 has 12 divisors (see below), whose sum is σ = 421930992. Its totient is φ = 110505648.

The previous prime is 231057329. The next prime is 231057367. The reversal of 231057356 is 653750132.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1255655 + ... + 1255838.

It is an arithmetic number, because the mean of its divisors is an integer number (35160916).

Almost surely, 2^231057356 is an apocalyptic number.

It is an amenable number.

231057356 is a deficient number, since it is larger than the sum of its proper divisors (190873636).

231057356 is a wasteful number, since it uses less digits than its factorization.

231057356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2511520 (or 2511518 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 32.

The square root of 231057356 is about 15200.5709103310. The cubic root of 231057356 is about 613.6300225215.

The spelling of 231057356 in words is "two hundred thirty-one million, fifty-seven thousand, three hundred fifty-six".