118542165 has 32 divisors (see below), whose sum is σ = 218246400. Its totient is φ = 53819904.

The previous prime is 118542157. The next prime is 118542199. The reversal of 118542165 is 561245811.

It is not a de Polignac number, because 118542165 - 2³ = 118542157 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11857 + ... + 19433.

It is an arithmetic number, because the mean of its divisors is an integer number (6820200).

Almost surely, 2^118542165 is an apocalyptic number.

118542165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

118542165 is a deficient number, since it is larger than the sum of its proper divisors (99704235).

118542165 is a wasteful number, since it uses less digits than its factorization.

118542165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7741.

The product of its digits is 9600, while the sum is 33.

The square root of 118542165 is about 10887.7070588807. The cubic root of 118542165 is about 491.2368655398.

Adding to 118542165 its reverse (561245811), we get a palindrome (679787976).

The spelling of 118542165 in words is "one hundred eighteen million, five hundred forty-two thousand, one hundred sixty-five".