232864137 has 18 divisors (see below), whose sum is σ = 369718986. Its totient is φ = 141129120.

The previous prime is 232864129. The next prime is 232864141. The reversal of 232864137 is 731468232.

It is a happy number.

232864137 is a `hidden beast` number, since 2 + 3 + 2 + 8 + 641 + 3 + 7 = 666.

232864137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 185749641 + 47114496 = 13629^2 + 6864^2 .

It is not a de Polignac number, because 232864137 - 2³ = 232864129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (232864187) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 105828 + ... + 108005.

Almost surely, 2^232864137 is an apocalyptic number.

It is an amenable number.

232864137 is a deficient number, since it is larger than the sum of its proper divisors (136854849).

232864137 is a wasteful number, since it uses less digits than its factorization.

232864137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213861 (or 213847 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 232864137 is about 15259.8865329989. The cubic root of 232864137 is about 615.2253229490.

The spelling of 232864137 in words is "two hundred thirty-two million, eight hundred sixty-four thousand, one hundred thirty-seven".