74147564 has 12 divisors (see below), whose sum is σ = 129845688. Its totient is φ = 37048800.

The previous prime is 74147543. The next prime is 74147573. The reversal of 74147564 is 46574147.

It is a happy number.

It is a super-2 number, since 2×74147564² = 10995722494268192, which contains 22 as substring.

It is a plaindrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1499 + ... + 12269.

It is an arithmetic number, because the mean of its divisors is an integer number (10820474).

Almost surely, 2^74147564 is an apocalyptic number.

It is an amenable number.

74147564 is a deficient number, since it is larger than the sum of its proper divisors (55698124).

74147564 is a wasteful number, since it uses less digits than its factorization.

74147564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12496 (or 12494 counting only the distinct ones).

The product of its digits is 94080, while the sum is 38.

The square root of 74147564 is about 8610.8979787244. The cubic root of 74147564 is about 420.1125246499.

The spelling of 74147564 in words is "seventy-four million, one hundred forty-seven thousand, five hundred sixty-four".