108855 has 24 divisors (see below), whose sum is σ = 196560. Its totient is φ = 55680.

The previous prime is 108827. The next prime is 108863. The reversal of 108855 is 558801.

It is not a de Polignac number, because 108855 - 2⁶ = 108791 is a prime.

It is a super-2 number, since 2×108855² = 23698822050, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

108855 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1816 + ... + 1874.

It is an arithmetic number, because the mean of its divisors is an integer number (8190).

2¹⁰⁸⁸⁵⁵ is an apocalyptic number.

108855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

108855 is a deficient number, since it is larger than the sum of its proper divisors (87705).

108855 is a wasteful number, since it uses less digits than its factorization.

108855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 108 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 27.

The square root of 108855 is about 329.9318111368. The cubic root of 108855 is about 47.7473706327.

The spelling of 108855 in words is "one hundred eight thousand, eight hundred fifty-five".