631456975 has 24 divisors (see below), whose sum is σ = 792525168. Its totient is φ = 499065600.

The previous prime is 631456961. The next prime is 631457003. The reversal of 631456975 is 579654136.

631456975 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 631456975 - 2¹¹ = 631454927 is a prime.

It is a super-2 number, since 2×631456975² = 797475822552301250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1133397 + ... + 1133953.

It is an arithmetic number, because the mean of its divisors is an integer number (33021882).

Almost surely, 2^631456975 is an apocalyptic number.

631456975 is a deficient number, since it is larger than the sum of its proper divisors (161068193).

631456975 is a wasteful number, since it uses less digits than its factorization.

631456975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1035 (or 1030 counting only the distinct ones).

The product of its digits is 680400, while the sum is 46.

The square root of 631456975 is about 25128.8076716744. The cubic root of 631456975 is about 857.9222308402.

The spelling of 631456975 in words is "six hundred thirty-one million, four hundred fifty-six thousand, nine hundred seventy-five".