74561137 has 8 divisors (see below), whose sum is σ = 85278272. Its totient is φ = 63860400.

The previous prime is 74561063. The next prime is 74561159. The reversal of 74561137 is 73116547.

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 74561137 - 2¹⁵ = 74528369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74561177) 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, 8062 + ... + 14632.

It is an arithmetic number, because the mean of its divisors is an integer number (10659784).

Almost surely, 2^74561137 is an apocalyptic number.

It is an amenable number.

74561137 is a deficient number, since it is larger than the sum of its proper divisors (10717135).

74561137 is a wasteful number, since it uses less digits than its factorization.

74561137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8199.

The product of its digits is 17640, while the sum is 34.

The square root of 74561137 is about 8634.8790958531. The cubic root of 74561137 is about 420.8921643683.

The spelling of 74561137 in words is "seventy-four million, five hundred sixty-one thousand, one hundred thirty-seven".