232979231 has 4 divisors (see below), whose sum is σ = 234543000. Its totient is φ = 231415464.

The previous prime is 232979183. The next prime is 232979233. The reversal of 232979231 is 132979232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-232979231 is a prime.

It is a super-2 number, since 2×232979231² = 108558644154702722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232979233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 781661 + ... + 781958.

It is an arithmetic number, because the mean of its divisors is an integer number (58635750).

Almost surely, 2^232979231 is an apocalyptic number.

232979231 is a deficient number, since it is larger than the sum of its proper divisors (1563769).

232979231 is a wasteful number, since it uses less digits than its factorization.

232979231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1563768.

The product of its digits is 40824, while the sum is 38.

The square root of 232979231 is about 15263.6571960982. The cubic root of 232979231 is about 615.3266654193.

Subtracting from 232979231 its reverse (132979232), we obtain a palindrome (99999999).

The spelling of 232979231 in words is "two hundred thirty-two million, nine hundred seventy-nine thousand, two hundred thirty-one".