631080812 has 6 divisors (see below), whose sum is σ = 1104391428. Its totient is φ = 315540404.

The previous prime is 631080799. The next prime is 631080823. The reversal of 631080812 is 218080136.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78885098 + ... + 78885105.

It is an arithmetic number, because the mean of its divisors is an integer number (184065238).

Almost surely, 2^631080812 is an apocalyptic number.

It is an amenable number.

631080812 is a deficient number, since it is larger than the sum of its proper divisors (473310616).

631080812 is a wasteful number, since it uses less digits than its factorization.

631080812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157770207 (or 157770205 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 631080812 is about 25121.3218601251. The cubic root of 631080812 is about 857.7518403961.

The spelling of 631080812 in words is "six hundred thirty-one million, eighty thousand, eight hundred twelve".