74971165 has 16 divisors (see below), whose sum is σ = 92620080. Its totient is φ = 58222080.

The previous prime is 74971159. The next prime is 74971187. The reversal of 74971165 is 56117947.

It can be written as a sum of positive squares in 8 ways, for example, as 4713241 + 70257924 = 2171^2 + 8382^2 .

It is not a de Polignac number, because 74971165 - 2⁹ = 74970653 is a prime.

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, 46147 + ... + 47743.

It is an arithmetic number, because the mean of its divisors is an integer number (5788755).

Almost surely, 2^74971165 is an apocalyptic number.

It is an amenable number.

74971165 is a deficient number, since it is larger than the sum of its proper divisors (17648915).

74971165 is a wasteful number, since it uses less digits than its factorization.

74971165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1872.

The product of its digits is 52920, while the sum is 40.

The square root of 74971165 is about 8658.5890882984. The cubic root of 74971165 is about 421.6622804323.

The spelling of 74971165 in words is "seventy-four million, nine hundred seventy-one thousand, one hundred sixty-five".