631142004 has 48 divisors (see below), whose sum is σ = 1533845376. Its totient is φ = 201801600.

The previous prime is 631141999. The next prime is 631142021. The reversal of 631142004 is 400241136.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 21514 + ... + 41534.

It is an arithmetic number, because the mean of its divisors is an integer number (31955112).

Almost surely, 2^631142004 is an apocalyptic number.

It is an amenable number.

631142004 is an abundant number, since it is smaller than the sum of its proper divisors (902703372).

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

631142004 is a wasteful number, since it uses less digits than its factorization.

631142004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20136 (or 20134 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 631142004 is about 25122.5397601437. The cubic root of 631142004 is about 857.7795631290.

The spelling of 631142004 in words is "six hundred thirty-one million, one hundred forty-two thousand, four".