108137688 has 16 divisors (see below), whose sum is σ = 270344280. Its totient is φ = 36045888.

The previous prime is 108137681. The next prime is 108137713. The reversal of 108137688 is 886731801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108137681) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2252845 + ... + 2252892.

Almost surely, 2^108137688 is an apocalyptic number.

It is an amenable number.

108137688 is an abundant number, since it is smaller than the sum of its proper divisors (162206592).

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

108137688 is a wasteful number, since it uses less digits than its factorization.

108137688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4505746 (or 4505742 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 108137688 is about 10398.9272523660. The cubic root of 108137688 is about 476.4226056454.

The spelling of 108137688 in words is "one hundred eight million, one hundred thirty-seven thousand, six hundred eighty-eight".