100860855 has 32 divisors (see below), whose sum is σ = 165364416. Its totient is φ = 52475904.

The previous prime is 100860839. The next prime is 100860863. The reversal of 100860855 is 558068001.

It is not a de Polignac number, because 100860855 - 2⁴ = 100860839 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 232719 + ... + 233151.

It is an arithmetic number, because the mean of its divisors is an integer number (5167638).

Almost surely, 2^100860855 is an apocalyptic number.

100860855 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100860855 is a deficient number, since it is larger than the sum of its proper divisors (64503561).

100860855 is a wasteful number, since it uses less digits than its factorization.

100860855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787.

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 100860855 is about 10042.9505126731. The cubic root of 100860855 is about 465.4869912447.

The spelling of 100860855 in words is "one hundred million, eight hundred sixty thousand, eight hundred fifty-five".