31107104 has 48 divisors (see below), whose sum is σ = 73684800. Its totient is φ = 12628224.

The previous prime is 31107079. The next prime is 31107143. The reversal of 31107104 is 40170113.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 602 + ... + 7910.

It is an arithmetic number, because the mean of its divisors is an integer number (1535100).

Almost surely, 2^31107104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31107104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36842400).

31107104 is an abundant number, since it is smaller than the sum of its proper divisors (42577696).

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

31107104 is a wasteful number, since it uses less digits than its factorization.

31107104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7345 (or 7337 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 31107104 is about 5577.3742926219. The cubic root of 31107104 is about 314.4994283528.

Adding to 31107104 its reverse (40170113), we get a palindrome (71277217).

The spelling of 31107104 in words is "thirty-one million, one hundred seven thousand, one hundred four".