118215 has 24 divisors (see below), whose sum is σ = 213408. Its totient is φ = 60480.

The previous prime is 118213. The next prime is 118219. The reversal of 118215 is 512811.

It is not a de Polignac number, because 118215 - 2¹ = 118213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118211) 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 23 ways as a sum of consecutive naturals, for example, 1630 + ... + 1700.

It is an arithmetic number, because the mean of its divisors is an integer number (8892).

2¹¹⁸²¹⁵ is an apocalyptic number.

118215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

118215 is a deficient number, since it is larger than the sum of its proper divisors (95193).

118215 is a wasteful number, since it uses less digits than its factorization.

118215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119 (or 116 counting only the distinct ones).

The product of its digits is 80, while the sum is 18.

The square root of 118215 is about 343.8240829261. The cubic root of 118215 is about 49.0784526944.

It can be divided in two parts, 118 and 215, that added together give a palindrome (333).

The spelling of 118215 in words is "one hundred eighteen thousand, two hundred fifteen".