631360431 has 24 divisors (see below), whose sum is σ = 998227776. Its totient is φ = 382155840.

The previous prime is 631360427. The next prime is 631360459. The reversal of 631360431 is 134063136.

It is not a de Polignac number, because 631360431 - 2² = 631360427 is a prime.

It is a super-2 number, since 2×631360431² = 797231987665011522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 631360395 and 631360404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631364431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37095 + ... + 51368.

It is an arithmetic number, because the mean of its divisors is an integer number (41592824).

Almost surely, 2^631360431 is an apocalyptic number.

631360431 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

631360431 is a deficient number, since it is larger than the sum of its proper divisors (366867345).

631360431 is a wasteful number, since it uses less digits than its factorization.

631360431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88543 (or 88540 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 631360431 is about 25126.8866157349. The cubic root of 631360431 is about 857.8785057892.

The spelling of 631360431 in words is "six hundred thirty-one million, three hundred sixty thousand, four hundred thirty-one".