631341256 has 32 divisors (see below), whose sum is σ = 1456943040. Its totient is φ = 249761088.

The previous prime is 631341251. The next prime is 631341289. The reversal of 631341256 is 652143136.

It is not an unprimeable number, because it can be changed into a prime (631341251) 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, 432886 + ... + 434341.

It is an arithmetic number, because the mean of its divisors is an integer number (45529470).

Almost surely, 2^631341256 is an apocalyptic number.

It is an amenable number.

631341256 is an abundant number, since it is smaller than the sum of its proper divisors (825601784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

631341256 is a wasteful number, since it uses less digits than its factorization.

631341256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867253 (or 867249 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 631341256 is about 25126.5050494493. The cubic root of 631341256 is about 857.8698208468.

The spelling of 631341256 in words is "six hundred thirty-one million, three hundred forty-one thousand, two hundred fifty-six".