108515912 has 36 divisors (see below), whose sum is σ = 212397705. Its totient is φ = 51974496.

The previous prime is 108515899. The next prime is 108515921. The reversal of 108515912 is 219515801.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 108451396 + 64516 = 10414^2 + 254^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=7366.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 854393 + ... + 854519.

Almost surely, 2^108515912 is an apocalyptic number.

It is an amenable number.

108515912 is a deficient number, since it is larger than the sum of its proper divisors (103881793).

108515912 is an equidigital number, since it uses as much as digits as its factorization.

108515912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 32.

The square root of 108515912 is about 10417.0971004402. The cubic root of 108515912 is about 476.9774069380.

Multiplying 108515912 by its sum of digits (32), we get a square (3472509184 = 58928²).

The spelling of 108515912 in words is "one hundred eight million, five hundred fifteen thousand, nine hundred twelve".