118915 has 8 divisors (see below), whose sum is σ = 151200. Its totient is φ = 89472.

The previous prime is 118913. The next prime is 118927. The reversal of 118915 is 519811.

118915 = 9⁴ + 10⁴ + ... + 14⁴.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 118915 - 2¹ = 118913 is a prime.

118915 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 118915.

It is not an unprimeable number, because it can be changed into a prime (118913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 615 + ... + 784.

It is an arithmetic number, because the mean of its divisors is an integer number (18900).

2¹¹⁸⁹¹⁵ is an apocalyptic number.

118915 is a deficient number, since it is larger than the sum of its proper divisors (32285).

118915 is a wasteful number, since it uses less digits than its factorization.

118915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1421.

The product of its digits is 360, while the sum is 25.

The square root of 118915 is about 344.8405428600. The cubic root of 118915 is about 49.1751334010.

The spelling of 118915 in words is "one hundred eighteen thousand, nine hundred fifteen".