264631631 has 8 divisors (see below), whose sum is σ = 290304000. Its totient is φ = 239228440.

The previous prime is 264631613. The next prime is 264631637. The reversal of 264631631 is 136136462.

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

It is not a de Polignac number, because 264631631 - 2⁶ = 264631567 is a prime.

It is a super-2 number, since 2×264631631² = 140059800251440322, 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 (264631637) 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 7 ways as a sum of consecutive naturals, for example, 65231 + ... + 69168.

It is an arithmetic number, because the mean of its divisors is an integer number (36288000).

Almost surely, 2^264631631 is an apocalyptic number.

264631631 is a deficient number, since it is larger than the sum of its proper divisors (25672369).

264631631 is a wasteful number, since it uses less digits than its factorization.

264631631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134589.

The product of its digits is 15552, while the sum is 32.

The square root of 264631631 is about 16267.5022975256. The cubic root of 264631631 is about 642.0180691595.

The spelling of 264631631 in words is "two hundred sixty-four million, six hundred thirty-one thousand, six hundred thirty-one".