74412545 has 8 divisors (see below), whose sum is σ = 90628224. Its totient is φ = 58641264.

The previous prime is 74412517. The next prime is 74412557. The reversal of 74412545 is 54521447.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-74412545 is a prime.

It is a Duffinian number.

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, 110729 + ... + 111398.

It is an arithmetic number, because the mean of its divisors is an integer number (11328528).

Almost surely, 2^74412545 is an apocalyptic number.

It is an amenable number.

74412545 is a deficient number, since it is larger than the sum of its proper divisors (16215679).

74412545 is a wasteful number, since it uses less digits than its factorization.

74412545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222199.

The product of its digits is 22400, while the sum is 32.

The square root of 74412545 is about 8626.2706310433. The cubic root of 74412545 is about 420.6123814370.

The spelling of 74412545 in words is "seventy-four million, four hundred twelve thousand, five hundred forty-five".