631503068 has 12 divisors (see below), whose sum is σ = 1263006192. Its totient is φ = 270644160.

The previous prime is 631503053. The next prime is 631503091. The reversal of 631503068 is 860305136.

631503068 is an admirable number.

It is a super-2 number, since 2×631503068² = 797592249786825248, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 11276813 + ... + 11276868.

It is an arithmetic number, because the mean of its divisors is an integer number (105250516).

Almost surely, 2^631503068 is an apocalyptic number.

It is an amenable number.

631503068 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

631503068 is a wasteful number, since it uses less digits than its factorization.

631503068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22553692 (or 22553690 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 631503068 is about 25129.7247895794. The cubic root of 631503068 is about 857.9431049187.

The spelling of 631503068 in words is "six hundred thirty-one million, five hundred three thousand, sixty-eight".