31081052 has 12 divisors (see below), whose sum is σ = 54434016. Its totient is φ = 15528480.

The previous prime is 31081021. The next prime is 31081097. The reversal of 31081052 is 25018013.

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, 5408 + ... + 9560.

It is an arithmetic number, because the mean of its divisors is an integer number (4536168).

Almost surely, 2^31081052 is an apocalyptic number.

It is an amenable number.

31081052 is a deficient number, since it is larger than the sum of its proper divisors (23352964).

31081052 is a wasteful number, since it uses less digits than its factorization.

31081052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6028 (or 6026 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 31081052 is about 5575.0382958326. The cubic root of 31081052 is about 314.4116067471.

Adding to 31081052 its reverse (25018013), we get a palindrome (56099065).

The spelling of 31081052 in words is "thirty-one million, eighty-one thousand, fifty-two".