31112196 has 48 divisors (see below), whose sum is σ = 77703360. Its totient is φ = 9659520.

The previous prime is 31112183. The next prime is 31112201. The reversal of 31112196 is 69121113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12790 + ... + 15026.

It is an arithmetic number, because the mean of its divisors is an integer number (1618820).

Almost surely, 2^31112196 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 31112196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38851680).

31112196 is an abundant number, since it is smaller than the sum of its proper divisors (46591164).

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

31112196 is a wasteful number, since it uses less digits than its factorization.

31112196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324 (or 2322 counting only the distinct ones).

The product of its digits is 324, while the sum is 24.

The square root of 31112196 is about 5577.8307611472. The cubic root of 31112196 is about 314.5165878170.

The spelling of 31112196 in words is "thirty-one million, one hundred twelve thousand, one hundred ninety-six".