118990 has 16 divisors (see below), whose sum is σ = 218448. Its totient is φ = 46656.

The previous prime is 118973. The next prime is 119027. The reversal of 118990 is 99811.

It is a nialpdrome in base 13.

It is a congruent number.

It is an unprimeable number.

118990 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 649 + ... + 811.

It is an arithmetic number, because the mean of its divisors is an integer number (13653).

2¹¹⁸⁹⁹⁰ is an apocalyptic number.

118990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

118990 is a deficient number, since it is larger than the sum of its proper divisors (99458).

118990 is a wasteful number, since it uses less digits than its factorization.

118990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243.

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 118990 is about 344.9492716328. The cubic root of 118990 is about 49.1854695232.

The spelling of 118990 in words is "one hundred eighteen thousand, nine hundred ninety".