631001064 has 32 divisors (see below), whose sum is σ = 1588860000. Its totient is φ = 208819392.

The previous prime is 631001003. The next prime is 631001089. The reversal of 631001064 is 460100136.

It is a self number, because there is not a number n which added to its sum of digits gives 631001064.

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, 91239 + ... + 97910.

It is an arithmetic number, because the mean of its divisors is an integer number (49651875).

Almost surely, 2^631001064 is an apocalyptic number.

It is an amenable number.

631001064 is an abundant number, since it is smaller than the sum of its proper divisors (957858936).

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

631001064 is a wasteful number, since it uses less digits than its factorization.

631001064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189297 (or 189293 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 631001064 is about 25119.7345527376. The cubic root of 631001064 is about 857.7157082696.

The spelling of 631001064 in words is "six hundred thirty-one million, one thousand, sixty-four".