232513631 has 8 divisors (see below), whose sum is σ = 270234240. Its totient is φ = 195919128.

The previous prime is 232513591. The next prime is 232513643. The reversal of 232513631 is 136315232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 232513631 - 2¹⁴ = 232497247 is a prime.

It is a super-2 number, since 2×232513631² = 108125177201608322, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 232513631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232513031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281081 + ... + 281906.

It is an arithmetic number, because the mean of its divisors is an integer number (33779280).

Almost surely, 2^232513631 is an apocalyptic number.

232513631 is a deficient number, since it is larger than the sum of its proper divisors (37720609).

232513631 is an equidigital number, since it uses as much as digits as its factorization.

232513631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563053.

The product of its digits is 3240, while the sum is 26.

The square root of 232513631 is about 15248.3976535241. The cubic root of 232513631 is about 614.9164898616.

Adding to 232513631 its reverse (136315232), we get a palindrome (368828863).

The spelling of 232513631 in words is "two hundred thirty-two million, five hundred thirteen thousand, six hundred thirty-one".