118506590 has 16 divisors (see below), whose sum is σ = 213444288. Its totient is φ = 47373216.

The previous prime is 118506571. The next prime is 118506593. The reversal of 118506590 is 95605811.

It is a self number, because there is not a number n which added to its sum of digits gives 118506590.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118506593) by changing a digit.

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, 21344 + ... + 26316.

It is an arithmetic number, because the mean of its divisors is an integer number (13340268).

Almost surely, 2^118506590 is an apocalyptic number.

118506590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118506590 is a deficient number, since it is larger than the sum of its proper divisors (94937698).

118506590 is a wasteful number, since it uses less digits than its factorization.

118506590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7363.

The product of its (nonzero) digits is 10800, while the sum is 35.

The square root of 118506590 is about 10886.0732130553. The cubic root of 118506590 is about 491.1877198766.

The spelling of 118506590 in words is "one hundred eighteen million, five hundred six thousand, five hundred ninety".