118515 has 8 divisors (see below), whose sum is σ = 189648. Its totient is φ = 63200.

The previous prime is 118493. The next prime is 118529. The reversal of 118515 is 515811.

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

It is not a de Polignac number, because 118515 - 2⁷ = 118387 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 118491 and 118500.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3936 + ... + 3965.

It is an arithmetic number, because the mean of its divisors is an integer number (23706).

2¹¹⁸⁵¹⁵ is an apocalyptic number.

118515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

118515 is a deficient number, since it is larger than the sum of its proper divisors (71133).

118515 is an equidigital number, since it uses as much as digits as its factorization.

118515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7909.

The product of its digits is 200, while the sum is 21.

The square root of 118515 is about 344.2600761053. The cubic root of 118515 is about 49.1199338896.

The spelling of 118515 in words is "one hundred eighteen thousand, five hundred fifteen".