74245523 has 4 divisors (see below), whose sum is σ = 80995128. Its totient is φ = 67495920.

The previous prime is 74245517. The next prime is 74245529. The reversal of 74245523 is 32554247.

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

It is an interprime number because it is at equal distance from previous prime (74245517) and next prime (74245529).

It is a cyclic number.

It is not a de Polignac number, because 74245523 - 2²⁰ = 73196947 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74245523.

It is not an unprimeable number, because it can be changed into a prime (74245529) 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, 3374786 + ... + 3374807.

It is an arithmetic number, because the mean of its divisors is an integer number (20248782).

Almost surely, 2^74245523 is an apocalyptic number.

74245523 is a deficient number, since it is larger than the sum of its proper divisors (6749605).

74245523 is a wasteful number, since it uses less digits than its factorization.

74245523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6749604.

The product of its digits is 33600, while the sum is 32.

The square root of 74245523 is about 8616.5841840024. The cubic root of 74245523 is about 420.2974517988.

The spelling of 74245523 in words is "seventy-four million, two hundred forty-five thousand, five hundred twenty-three".