118815980 has 12 divisors (see below), whose sum is σ = 249513600. Its totient is φ = 47526384.

The previous prime is 118815973. The next prime is 118815989. The reversal of 118815980 is 89518811.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (118815989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2970380 + ... + 2970419.

It is an arithmetic number, because the mean of its divisors is an integer number (20792800).

Almost surely, 2^118815980 is an apocalyptic number.

118815980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

118815980 is an abundant number, since it is smaller than the sum of its proper divisors (130697620).

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

118815980 is a wasteful number, since it uses less digits than its factorization.

118815980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5940808 (or 5940806 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 41.

The square root of 118815980 is about 10900.2743084750. The cubic root of 118815980 is about 491.6148030454.

The spelling of 118815980 in words is "one hundred eighteen million, eight hundred fifteen thousand, nine hundred eighty".