108915 has 16 divisors (see below), whose sum is σ = 178848. Its totient is φ = 56576.

The previous prime is 108907. The next prime is 108917. The reversal of 108915 is 519801.

It is a cyclic number.

It is not a de Polignac number, because 108915 - 2³ = 108907 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108917) 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, 727 + ... + 863.

It is an arithmetic number, because the mean of its divisors is an integer number (11178).

2¹⁰⁸⁹¹⁵ is an apocalyptic number.

108915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

108915 is a deficient number, since it is larger than the sum of its proper divisors (69933).

108915 is a wasteful number, since it uses less digits than its factorization.

108915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198.

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 108915 is about 330.0227264902. The cubic root of 108915 is about 47.7561416769.

The spelling of 108915 in words is "one hundred eight thousand, nine hundred fifteen".