118131790 has 32 divisors (see below), whose sum is σ = 251398080. Its totient is φ = 39105024.

The previous prime is 118131757. The next prime is 118131809. The reversal of 118131790 is 97131811.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27067 + ... + 31126.

It is an arithmetic number, because the mean of its divisors is an integer number (7856190).

Almost surely, 2^118131790 is an apocalyptic number.

118131790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118131790 is an abundant number, since it is smaller than the sum of its proper divisors (133266290).

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

118131790 is a wasteful number, since it uses less digits than its factorization.

118131790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58236.

The product of its (nonzero) digits is 1512, while the sum is 31.

The square root of 118131790 is about 10868.8449248299. The cubic root of 118131790 is about 490.6693476350.

The spelling of 118131790 in words is "one hundred eighteen million, one hundred thirty-one thousand, seven hundred ninety".