108931956 has 48 divisors (see below), whose sum is σ = 303120384. Its totient is φ = 29769696.

The previous prime is 108931951. The next prime is 108931961. The reversal of 108931956 is 659139801.

It is an interprime number because it is at equal distance from previous prime (108931951) and next prime (108931961).

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108931951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26260 + ... + 30123.

It is an arithmetic number, because the mean of its divisors is an integer number (6315008).

Almost surely, 2^108931956 is an apocalyptic number.

It is an amenable number.

108931956 is an abundant number, since it is smaller than the sum of its proper divisors (194188428).

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

108931956 is a wasteful number, since it uses less digits than its factorization.

108931956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56420 (or 56418 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 108931956 is about 10437.0472835951. The cubic root of 108931956 is about 477.5861979014.

The spelling of 108931956 in words is "one hundred eight million, nine hundred thirty-one thousand, nine hundred fifty-six".