118389105 has 96 divisors (see below), whose sum is σ = 229806720. Its totient is φ = 56125440.

The previous prime is 118389097. The next prime is 118389143. The reversal of 118389105 is 501983811.

It is not a de Polignac number, because 118389105 - 2³ = 118389097 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 118389105.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1940775 + ... + 1940835.

It is an arithmetic number, because the mean of its divisors is an integer number (2393820).

Almost surely, 2^118389105 is an apocalyptic number.

118389105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

118389105 is a deficient number, since it is larger than the sum of its proper divisors (111417615).

118389105 is a wasteful number, since it uses less digits than its factorization.

118389105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 36.

The square root of 118389105 is about 10880.6757602642. The cubic root of 118389105 is about 491.0253484009.

The spelling of 118389105 in words is "one hundred eighteen million, three hundred eighty-nine thousand, one hundred five".