232664261 has 4 divisors (see below), whose sum is σ = 246350412. Its totient is φ = 218978112.

The previous prime is 232664249. The next prime is 232664321. The reversal of 232664261 is 162466232.

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

It can be written as a sum of positive squares in 2 ways, for example, as 185123236 + 47541025 = 13606^2 + 6895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-232664261 is a prime.

It is a super-2 number, since 2×232664261² = 108265316693352242, 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 (232664161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6843050 + ... + 6843083.

It is an arithmetic number, because the mean of its divisors is an integer number (61587603).

Almost surely, 2^232664261 is an apocalyptic number.

It is an amenable number.

232664261 is a deficient number, since it is larger than the sum of its proper divisors (13686151).

232664261 is a wasteful number, since it uses less digits than its factorization.

232664261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13686150.

The product of its digits is 20736, while the sum is 32.

The square root of 232664261 is about 15253.3360613343. The cubic root of 232664261 is about 615.0492489258.

The spelling of 232664261 in words is "two hundred thirty-two million, six hundred sixty-four thousand, two hundred sixty-one".