108931238 has 16 divisors (see below), whose sum is σ = 178853136. Its totient is φ = 49451040.

The previous prime is 108931231. The next prime is 108931259. The reversal of 108931238 is 832139801.

It is a super-2 number, since 2×108931238² = 23732029224425288, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 108931198 and 108931207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108931231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32756 + ... + 35927.

It is an arithmetic number, because the mean of its divisors is an integer number (11178321).

Almost surely, 2^108931238 is an apocalyptic number.

108931238 is a deficient number, since it is larger than the sum of its proper divisors (69921898).

108931238 is a wasteful number, since it uses less digits than its factorization.

108931238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68759.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 108931238 is about 10437.0128868369. The cubic root of 108931238 is about 477.5851485991.

The spelling of 108931238 in words is "one hundred eight million, nine hundred thirty-one thousand, two hundred thirty-eight".