631403132 has 24 divisors (see below), whose sum is σ = 1130907120. Its totient is φ = 308355840.

The previous prime is 631403111. The next prime is 631403173. The reversal of 631403132 is 231304136.

631403132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 631403098 and 631403107.

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, 28532 + ... + 45572.

It is an arithmetic number, because the mean of its divisors is an integer number (47121130).

Almost surely, 2^631403132 is an apocalyptic number.

It is an amenable number.

631403132 is a deficient number, since it is larger than the sum of its proper divisors (499503988).

631403132 is a wasteful number, since it uses less digits than its factorization.

631403132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17261 (or 17259 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 631403132 is about 25127.7363087087. The cubic root of 631403132 is about 857.8978457428.

Adding to 631403132 its reverse (231304136), we get a palindrome (862707268).

The spelling of 631403132 in words is "six hundred thirty-one million, four hundred three thousand, one hundred thirty-two".