231965956 has 12 divisors (see below), whose sum is σ = 406048720. Its totient is φ = 115952040.

The previous prime is 231965939. The next prime is 231965957. The reversal of 231965956 is 659569132.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (231965957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20971 + ... + 30061.

Almost surely, 2^231965956 is an apocalyptic number.

It is an amenable number.

231965956 is a deficient number, since it is larger than the sum of its proper divisors (174082764).

231965956 is a wasteful number, since it uses less digits than its factorization.

231965956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15474 (or 15472 counting only the distinct ones).

The product of its digits is 437400, while the sum is 46.

The square root of 231965956 is about 15230.4286216771. The cubic root of 231965956 is about 614.4333079330.

The spelling of 231965956 in words is "two hundred thirty-one million, nine hundred sixty-five thousand, nine hundred fifty-six".