631263132 has 30 divisors (see below), whose sum is σ = 1650247368. Its totient is φ = 210420936.

The previous prime is 631263089. The next prime is 631263151. The reversal of 631263132 is 231362136.

It is a happy number.

631263132 is a `hidden beast` number, since 631 + 26 + 3 + 1 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 631263096 and 631263105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 973848 + ... + 974495.

Almost surely, 2^631263132 is an apocalyptic number.

It is an amenable number.

631263132 is an abundant number, since it is smaller than the sum of its proper divisors (1018984236).

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

631263132 is a wasteful number, since it uses less digits than its factorization.

631263132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948359 (or 1948348 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 631263132 is about 25124.9503880107. The cubic root of 631263132 is about 857.8344342864.

The spelling of 631263132 in words is "six hundred thirty-one million, two hundred sixty-three thousand, one hundred thirty-two".