74861165 has 4 divisors (see below), whose sum is σ = 89833404. Its totient is φ = 59888928.

The previous prime is 74861123. The next prime is 74861167. The reversal of 74861165 is 56116847.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34880836 + 39980329 = 5906^2 + 6323^2 .

It is a cyclic number.

It is not a de Polignac number, because 74861165 - 2¹⁰ = 74860141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74861167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7486112 + ... + 7486121.

It is an arithmetic number, because the mean of its divisors is an integer number (22458351).

Almost surely, 2^74861165 is an apocalyptic number.

It is an amenable number.

74861165 is a deficient number, since it is larger than the sum of its proper divisors (14972239).

74861165 is a wasteful number, since it uses less digits than its factorization.

74861165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14972238.

The product of its digits is 40320, while the sum is 38.

The square root of 74861165 is about 8652.2346824390. The cubic root of 74861165 is about 421.4559541995.

The spelling of 74861165 in words is "seventy-four million, eight hundred sixty-one thousand, one hundred sixty-five".