74924161 has 8 divisors (see below), whose sum is σ = 80826984. Its totient is φ = 69041280.

The previous prime is 74924141. The next prime is 74924173. The reversal of 74924161 is 16142947.

It can be written as a sum of positive squares in 4 ways, for example, as 3352561 + 71571600 = 1831^2 + 8460^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 74924161 - 2¹³ = 74915969 is a prime.

It is a super-2 number, since 2×74924161² = 11227259803107842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74924141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3351 + ... + 12691.

It is an arithmetic number, because the mean of its divisors is an integer number (10103373).

Almost surely, 2^74924161 is an apocalyptic number.

It is an amenable number.

74924161 is a deficient number, since it is larger than the sum of its proper divisors (5902823).

74924161 is a wasteful number, since it uses less digits than its factorization.

74924161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9971.

The product of its digits is 12096, while the sum is 34.

The square root of 74924161 is about 8655.8743636908. The cubic root of 74924161 is about 421.5741400681.

The spelling of 74924161 in words is "seventy-four million, nine hundred twenty-four thousand, one hundred sixty-one".