631501132 has 12 divisors (see below), whose sum is σ = 1105445880. Its totient is φ = 315659456.

The previous prime is 631501127. The next prime is 631501153. The reversal of 631501132 is 231105136.

It is a happy number.

631501132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5773 + ... + 36004.

It is an arithmetic number, because the mean of its divisors is an integer number (92120490).

Almost surely, 2^631501132 is an apocalyptic number.

It is an amenable number.

631501132 is a deficient number, since it is larger than the sum of its proper divisors (473944748).

631501132 is a wasteful number, since it uses less digits than its factorization.

631501132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45560 (or 45558 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 631501132 is about 25129.6862694304. The cubic root of 631501132 is about 857.9422281852.

Adding to 631501132 its reverse (231105136), we get a palindrome (862606268).

The spelling of 631501132 in words is "six hundred thirty-one million, five hundred one thousand, one hundred thirty-two".