118309855 has 8 divisors (see below), whose sum is σ = 142211664. Its totient is φ = 94488000.

The previous prime is 118309843. The next prime is 118309897. The reversal of 118309855 is 558903811.

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

It is not a de Polignac number, because 118309855 - 2⁹ = 118309343 is a prime.

It is a Duffinian number.

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, 16681 + ... + 22690.

It is an arithmetic number, because the mean of its divisors is an integer number (17776458).

Almost surely, 2^118309855 is an apocalyptic number.

118309855 is a deficient number, since it is larger than the sum of its proper divisors (23901809).

118309855 is an equidigital number, since it uses as much as digits as its factorization.

118309855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39977.

The product of its (nonzero) digits is 43200, while the sum is 40.

The square root of 118309855 is about 10877.0333731216. The cubic root of 118309855 is about 490.9157593609.

The spelling of 118309855 in words is "one hundred eighteen million, three hundred nine thousand, eight hundred fifty-five".