108815 has 8 divisors (see below), whose sum is σ = 149280. Its totient is φ = 74592.

The previous prime is 108803. The next prime is 108821. The reversal of 108815 is 518801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 108815 - 2⁴ = 108799 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1520 + ... + 1589.

It is an arithmetic number, because the mean of its divisors is an integer number (18660).

2¹⁰⁸⁸¹⁵ is an apocalyptic number.

108815 is a deficient number, since it is larger than the sum of its proper divisors (40465).

108815 is an equidigital number, since it uses as much as digits as its factorization.

108815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3121.

The product of its (nonzero) digits is 320, while the sum is 23.

The square root of 108815 is about 329.8711869806. The cubic root of 108815 is about 47.7415214792.

The spelling of 108815 in words is "one hundred eight thousand, eight hundred fifteen".