74085165 has 64 divisors (see below), whose sum is σ = 164229120. Its totient is φ = 30784320.

The previous prime is 74085157. The next prime is 74085181. The reversal of 74085165 is 56158047.

It is not a de Polignac number, because 74085165 - 2³ = 74085157 is a prime.

It is a super-2 number, since 2×74085165² = 10977223346154450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6832 + ... + 13958.

It is an arithmetic number, because the mean of its divisors is an integer number (2566080).

Almost surely, 2^74085165 is an apocalyptic number.

It is an amenable number.

74085165 is an abundant number, since it is smaller than the sum of its proper divisors (90143955).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

74085165 is a wasteful number, since it uses less digits than its factorization.

74085165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7159 (or 7153 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 74085165 is about 8607.2739586933. The cubic root of 74085165 is about 419.9946427888.

It can be divided in two parts, 740 and 85165, that added together give a triangular number (85905 = T₄₁₄).

The spelling of 74085165 in words is "seventy-four million, eighty-five thousand, one hundred sixty-five".