631104160 has 48 divisors (see below), whose sum is σ = 1492688736. Its totient is φ = 252153088.

The previous prime is 631104157. The next prime is 631104191. The reversal of 631104160 is 61401136.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188259 + ... + 191581.

It is an arithmetic number, because the mean of its divisors is an integer number (31097682).

Almost surely, 2^631104160 is an apocalyptic number.

It is an amenable number.

631104160 is an abundant number, since it is smaller than the sum of its proper divisors (861584576).

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

631104160 is a wasteful number, since it uses less digits than its factorization.

631104160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4525 (or 4517 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 631104160 is about 25121.7865606728. The cubic root of 631104160 is about 857.7624183034.

Adding to 631104160 its reverse (61401136), we get a palindrome (692505296).

The spelling of 631104160 in words is "six hundred thirty-one million, one hundred four thousand, one hundred sixty".