31768152 has 128 divisors (see below), whose sum is σ = 94348800. Its totient is φ = 8819712.

The previous prime is 31768151. The next prime is 31768157. The reversal of 31768152 is 25186713.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31768151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 136228 + ... + 136460.

It is an arithmetic number, because the mean of its divisors is an integer number (737100).

Almost surely, 2^31768152 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 31768152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47174400).

31768152 is an abundant number, since it is smaller than the sum of its proper divisors (62580648).

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

31768152 is a wasteful number, since it uses less digits than its factorization.

31768152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297 (or 293 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 31768152 is about 5636.3243341738. The cubic root of 31768152 is about 316.7116099953.

The spelling of 31768152 in words is "thirty-one million, seven hundred sixty-eight thousand, one hundred fifty-two".