118315590 has 16 divisors (see below), whose sum is σ = 283957488. Its totient is φ = 31550816.

The previous prime is 118315583. The next prime is 118315601. The reversal of 118315590 is 95513811.

It is a Curzon number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1971897 + ... + 1971956.

It is an arithmetic number, because the mean of its divisors is an integer number (17747343).

Almost surely, 2^118315590 is an apocalyptic number.

118315590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118315590 is an abundant number, since it is smaller than the sum of its proper divisors (165641898).

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

118315590 is a wasteful number, since it uses less digits than its factorization.

118315590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3943863.

The product of its (nonzero) digits is 5400, while the sum is 33.

The square root of 118315590 is about 10877.2969987952. The cubic root of 118315590 is about 490.9236915161.

The spelling of 118315590 in words is "one hundred eighteen million, three hundred fifteen thousand, five hundred ninety".