74120569 has 4 divisors (see below), whose sum is σ = 74138020. Its totient is φ = 74103120.

The previous prime is 74120537. The next prime is 74120573. The reversal of 74120569 is 96502147.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 96502147 = 7 ⋅13786021.

It can be written as a sum of positive squares in 2 ways, for example, as 22467600 + 51652969 = 4740^2 + 7187^2 .

It is a cyclic number.

It is not a de Polignac number, because 74120569 - 2⁵ = 74120537 is a prime.

It is a super-2 number, since 2×74120569² = 10987717497767522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74120069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2239 + ... + 12379.

It is an arithmetic number, because the mean of its divisors is an integer number (18534505).

Almost surely, 2^74120569 is an apocalyptic number.

It is an amenable number.

74120569 is a deficient number, since it is larger than the sum of its proper divisors (17451).

74120569 is a wasteful number, since it uses less digits than its factorization.

74120569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17450.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 74120569 is about 8609.3303456192. The cubic root of 74120569 is about 420.0615348238.

The spelling of 74120569 in words is "seventy-four million, one hundred twenty thousand, five hundred sixty-nine".