30631152 has 40 divisors (see below), whose sum is σ = 79717120. Its totient is φ = 10134720.

The previous prime is 30631151. The next prime is 30631177. The reversal of 30631152 is 25113603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30631151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4377 + ... + 8967.

It is an arithmetic number, because the mean of its divisors is an integer number (1992928).

Almost surely, 2^30631152 is an apocalyptic number.

It is an amenable number.

30631152 is an abundant number, since it is smaller than the sum of its proper divisors (49085968).

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

30631152 is a wasteful number, since it uses less digits than its factorization.

30631152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4741 (or 4735 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 30631152 is about 5534.5417154449. The cubic root of 30631152 is about 312.8871855747.

Adding to 30631152 its reverse (25113603), we get a palindrome (55744755).

The spelling of 30631152 in words is "thirty million, six hundred thirty-one thousand, one hundred fifty-two".