231474321 has 64 divisors (see below), whose sum is σ = 395808000. Its totient is φ = 132503040.

The previous prime is 231474319. The next prime is 231474349. The reversal of 231474321 is 123474132.

It is a happy number.

It is not a de Polignac number, because 231474321 - 2¹ = 231474319 is a prime.

It is a super-2 number, since 2×231474321² = 107160722564822082, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (231474311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 406525 + ... + 407093.

It is an arithmetic number, because the mean of its divisors is an integer number (6184500).

Almost surely, 2^231474321 is an apocalyptic number.

It is an amenable number.

231474321 is a deficient number, since it is larger than the sum of its proper divisors (164333679).

231474321 is a wasteful number, since it uses less digits than its factorization.

231474321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671 (or 665 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 231474321 is about 15214.2801670010. The cubic root of 231474321 is about 613.9989186427.

It can be divided in two parts, 231 and 474321, that added together give a cube (474552 = 78³).

The spelling of 231474321 in words is "two hundred thirty-one million, four hundred seventy-four thousand, three hundred twenty-one".