118511856 has 40 divisors (see below), whose sum is σ = 340174160. Its totient is φ = 39503808.

The previous prime is 118511849. The next prime is 118511867. The reversal of 118511856 is 658115811.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 118511856.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136735 + ... + 137598.

It is an arithmetic number, because the mean of its divisors is an integer number (8504354).

Almost surely, 2^118511856 is an apocalyptic number.

118511856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

118511856 is an abundant number, since it is smaller than the sum of its proper divisors (221662304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

118511856 is a wasteful number, since it uses less digits than its factorization.

118511856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274350 (or 274338 counting only the distinct ones).

The product of its digits is 9600, while the sum is 36.

The square root of 118511856 is about 10886.3150790339. The cubic root of 118511856 is about 491.1949952982.

It can be divided in two parts, 1185 and 11856, that added together give a triangular number (13041 = T₁₆₁).

The spelling of 118511856 in words is "one hundred eighteen million, five hundred eleven thousand, eight hundred fifty-six".