31204 has 12 divisors (see below), whose sum is σ = 56700. Its totient is φ = 15008.

The previous prime is 31193. The next prime is 31219. The reversal of 31204 is 40213.

It can be written as a sum of positive squares in 2 ways, for example, as 8100 + 23104 = 90^2 + 152^2 .

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, 19 + ... + 250.

It is an arithmetic number, because the mean of its divisors is an integer number (4725).

2³¹²⁰⁴ is an apocalyptic number.

It is an amenable number.

31204 is a deficient number, since it is larger than the sum of its proper divisors (25496).

31204 is a wasteful number, since it uses less digits than its factorization.

31204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 31204 is about 176.6465397340. The cubic root of 31204 is about 31.4825636264.

Adding to 31204 its reverse (40213), we get a palindrome (71417).

Subtracting 31204 from its reverse (40213), we obtain a palindrome (9009).

The spelling of 31204 in words is "thirty-one thousand, two hundred four".