108106855 has 4 divisors (see below), whose sum is σ = 129728232. Its totient is φ = 86485480.

The previous prime is 108106819. The next prime is 108106883. The reversal of 108106855 is 558601801.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 108106855 - 2¹³ = 108098663 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 108106855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10810681 + ... + 10810690.

It is an arithmetic number, because the mean of its divisors is an integer number (32432058).

Almost surely, 2^108106855 is an apocalyptic number.

108106855 is a deficient number, since it is larger than the sum of its proper divisors (21621377).

108106855 is an equidigital number, since it uses as much as digits as its factorization.

108106855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21621376.

The product of its (nonzero) digits is 9600, while the sum is 34.

The square root of 108106855 is about 10397.4446379868. Note that the first 3 decimals coincide. The cubic root of 108106855 is about 476.3773209877.

The spelling of 108106855 in words is "one hundred eight million, one hundred six thousand, eight hundred fifty-five".