30631132 has 12 divisors (see below), whose sum is σ = 61262320. Its totient is φ = 13127616.

The previous prime is 30631129. The next prime is 30631151. The reversal of 30631132 is 23113603.

30631132 is an admirable number.

It is a congruent number.

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, 546957 + ... + 547012.

Almost surely, 2^30631132 is an apocalyptic number.

It is an amenable number.

30631132 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.

30631132 is a wasteful number, since it uses less digits than its factorization.

30631132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093980 (or 1093978 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 30631132 is about 5534.5399086103. The cubic root of 30631132 is about 312.8871174768.

Adding to 30631132 its reverse (23113603), we get a palindrome (53744735).

The spelling of 30631132 in words is "thirty million, six hundred thirty-one thousand, one hundred thirty-two".