31112192 has 44 divisors (see below), whose sum is σ = 64947216. Its totient is φ = 14868480.

The previous prime is 31112183. The next prime is 31112201. The reversal of 31112192 is 29121113.

It is an interprime number because it is at equal distance from previous prime (31112183) and next prime (31112201).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22892 + ... + 24212.

Almost surely, 2^31112192 is an apocalyptic number.

31112192 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31112192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32473608).

31112192 is an abundant number, since it is smaller than the sum of its proper divisors (33835024).

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

31112192 is a wasteful number, since it uses less digits than its factorization.

31112192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1364 (or 1346 counting only the distinct ones).

The product of its digits is 108, while the sum is 20.

The square root of 31112192 is about 5577.8304025849. The cubic root of 31112192 is about 314.5165743382.

The spelling of 31112192 in words is "thirty-one million, one hundred twelve thousand, one hundred ninety-two".