234931257 has 24 divisors (see below), whose sum is σ = 389681760. Its totient is φ = 134887680.

The previous prime is 234931247. The next prime is 234931259. The reversal of 234931257 is 752139432.

It is not a de Polignac number, because 234931257 - 2⁷ = 234931129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (234931259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60568 + ... + 64329.

It is an arithmetic number, because the mean of its divisors is an integer number (16236740).

Almost surely, 2^234931257 is an apocalyptic number.

It is an amenable number.

234931257 is a deficient number, since it is larger than the sum of its proper divisors (154750503).

234931257 is a wasteful number, since it uses less digits than its factorization.

234931257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124933 (or 124930 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The square root of 234931257 is about 15327.4674033253. The cubic root of 234931257 is about 617.0404012887.

The spelling of 234931257 in words is "two hundred thirty-four million, nine hundred thirty-one thousand, two hundred fifty-seven".