118515180 has 96 divisors (see below), whose sum is σ = 381588480. Its totient is φ = 26922240.

The previous prime is 118515169. The next prime is 118515197. The reversal of 118515180 is 81515811.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75241 + ... + 76799.

It is an arithmetic number, because the mean of its divisors is an integer number (3974880).

Almost surely, 2^118515180 is an apocalyptic number.

118515180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118515180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190794240).

118515180 is an abundant number, since it is smaller than the sum of its proper divisors (263073300).

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

118515180 is a wasteful number, since it uses less digits than its factorization.

118515180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759 (or 1757 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 30.

The square root of 118515180 is about 10886.4677467028. The cubic root of 118515180 is about 491.1995875726.

The spelling of 118515180 in words is "one hundred eighteen million, five hundred fifteen thousand, one hundred eighty".