31104205 has 32 divisors (see below), whose sum is σ = 42283008. Its totient is φ = 21772800.

The previous prime is 31104193. The next prime is 31104223. The reversal of 31104205 is 50240113.

It is not a de Polignac number, because 31104205 - 2⁵ = 31104173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 244852 + ... + 244978.

It is an arithmetic number, because the mean of its divisors is an integer number (1321344).

Almost surely, 2^31104205 is an apocalyptic number.

It is an amenable number.

31104205 is a deficient number, since it is larger than the sum of its proper divisors (11178803).

31104205 is a wasteful number, since it uses less digits than its factorization.

31104205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 31104205 is about 5577.1143972488. The cubic root of 31104205 is about 314.4896582140.

Adding to 31104205 its reverse (50240113), we get a palindrome (81344318).

The spelling of 31104205 in words is "thirty-one million, one hundred four thousand, two hundred five".