74521465 has 8 divisors (see below), whose sum is σ = 89634888. Its totient is φ = 59477760.

The previous prime is 74521453. The next prime is 74521549. The reversal of 74521465 is 56412547.

It can be written as a sum of positive squares in 4 ways, for example, as 12222016 + 62299449 = 3496^2 + 7893^2 .

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

It is not a de Polignac number, because 74521465 - 2¹³ = 74513273 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 74521465.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15046 + ... + 19375.

It is an arithmetic number, because the mean of its divisors is an integer number (11204361).

Almost surely, 2^74521465 is an apocalyptic number.

It is an amenable number.

74521465 is a deficient number, since it is larger than the sum of its proper divisors (15113423).

74521465 is a wasteful number, since it uses less digits than its factorization.

74521465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34859.

The product of its digits is 33600, while the sum is 34.

The square root of 74521465 is about 8632.5815953282. The cubic root of 74521465 is about 420.8175026122.

The spelling of 74521465 in words is "seventy-four million, five hundred twenty-one thousand, four hundred sixty-five".