108515897 has 16 divisors (see below), whose sum is σ = 130838400. Its totient is φ = 87920640.

The previous prime is 108515881. The next prime is 108515899. The reversal of 108515897 is 798515801.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 108515897 - 2⁴ = 108515881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (108515899) 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, 101747 + ... + 102807.

It is an arithmetic number, because the mean of its divisors is an integer number (8177400).

Almost surely, 2^108515897 is an apocalyptic number.

It is an amenable number.

108515897 is a deficient number, since it is larger than the sum of its proper divisors (22322503).

108515897 is a wasteful number, since it uses less digits than its factorization.

108515897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856.

The product of its (nonzero) digits is 100800, while the sum is 44.

The square root of 108515897 is about 10417.0963804699. The cubic root of 108515897 is about 476.9773849607.

The spelling of 108515897 in words is "one hundred eight million, five hundred fifteen thousand, eight hundred ninety-seven".