87118165 has 16 divisors (see below), whose sum is σ = 107710848. Its totient is φ = 67594176.

The previous prime is 87118151. The next prime is 87118189. The reversal of 87118165 is 56181178.

It is a cyclic number.

It is not a de Polignac number, because 87118165 - 2⁵ = 87118133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81424 + ... + 82486.

It is an arithmetic number, because the mean of its divisors is an integer number (6731928).

Almost surely, 2^87118165 is an apocalyptic number.

It is an amenable number.

87118165 is a deficient number, since it is larger than the sum of its proper divisors (20592683).

87118165 is a wasteful number, since it uses less digits than its factorization.

87118165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548.

The product of its digits is 13440, while the sum is 37.

The square root of 87118165 is about 9333.7112125885. The cubic root of 87118165 is about 443.3052824257.

The spelling of 87118165 in words is "eighty-seven million, one hundred eighteen thousand, one hundred sixty-five".