631135712 has 48 divisors (see below), whose sum is σ = 1265870592. Its totient is φ = 309682560.

The previous prime is 631135697. The next prime is 631135733. The reversal of 631135712 is 217531136.

It is a congruent number.

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, 923723 + ... + 924405.

It is an arithmetic number, because the mean of its divisors is an integer number (26372304).

Almost surely, 2^631135712 is an apocalyptic number.

It is an amenable number.

631135712 is an abundant number, since it is smaller than the sum of its proper divisors (634734880).

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

631135712 is a wasteful number, since it uses less digits than its factorization.

631135712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191 (or 1183 counting only the distinct ones).

The product of its digits is 3780, while the sum is 29.

The square root of 631135712 is about 25122.4145336391. The cubic root of 631135712 is about 857.7767126522.

Adding to 631135712 its reverse (217531136), we get a palindrome (848666848).

The spelling of 631135712 in words is "six hundred thirty-one million, one hundred thirty-five thousand, seven hundred twelve".