87537165 has 32 divisors (see below), whose sum is σ = 149869440. Its totient is φ = 43474944.

The previous prime is 87537157. The next prime is 87537169. The reversal of 87537165 is 56173578.

It is not a de Polignac number, because 87537165 - 2³ = 87537157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87537169) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22966 + ... + 26504.

It is an arithmetic number, because the mean of its divisors is an integer number (4683420).

Almost surely, 2^87537165 is an apocalyptic number.

87537165 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

87537165 is a deficient number, since it is larger than the sum of its proper divisors (62332275).

87537165 is a wasteful number, since it uses less digits than its factorization.

87537165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3661.

The product of its digits is 176400, while the sum is 42.

The square root of 87537165 is about 9356.1298088472. The cubic root of 87537165 is about 444.0148471214.

The spelling of 87537165 in words is "eighty-seven million, five hundred thirty-seven thousand, one hundred sixty-five".