231140884 has 12 divisors (see below), whose sum is σ = 435611764. Its totient is φ = 106680384.

The previous prime is 231140879. The next prime is 231140911. The reversal of 231140884 is 488041132.

It can be written as a sum of positive squares in 2 ways, for example, as 71876484 + 159264400 = 8478^2 + 12620^2 .

It is a super-2 number, since 2×231140884² = 106852216512602912, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

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, 2222457 + ... + 2222560.

Almost surely, 2^231140884 is an apocalyptic number.

It is an amenable number.

231140884 is a deficient number, since it is larger than the sum of its proper divisors (204470880).

231140884 is a wasteful number, since it uses less digits than its factorization.

231140884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4445034 (or 4445032 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 231140884 is about 15203.3181904478. The cubic root of 231140884 is about 613.7039567087.

The spelling of 231140884 in words is "two hundred thirty-one million, one hundred forty thousand, eight hundred eighty-four".