231274772 has 12 divisors (see below), whose sum is σ = 408904020. Its totient is φ = 114445056.

The previous prime is 231274763. The next prime is 231274781. The reversal of 231274772 is 277472132.

231274772 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (231274763) and next prime (231274781).

It can be written as a sum of positive squares in 2 ways, for example, as 130553476 + 100721296 = 11426^2 + 10036^2 .

It is a congruent number.

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, 297647 + ... + 298422.

It is an arithmetic number, because the mean of its divisors is an integer number (34075335).

Almost surely, 2^231274772 is an apocalyptic number.

It is an amenable number.

231274772 is a deficient number, since it is larger than the sum of its proper divisors (177629248).

231274772 is a wasteful number, since it uses less digits than its factorization.

231274772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596170 (or 596168 counting only the distinct ones).

The product of its digits is 32928, while the sum is 35.

The square root of 231274772 is about 15207.7208022767. The cubic root of 231274772 is about 613.8224295262.

The spelling of 231274772 in words is "two hundred thirty-one million, two hundred seventy-four thousand, seven hundred seventy-two".