74581045 has 32 divisors (see below), whose sum is σ = 112121856. Its totient is φ = 46267200.

The previous prime is 74581043. The next prime is 74581079. The reversal of 74581045 is 54018547.

It is not a de Polignac number, because 74581045 - 2¹ = 74581043 is a prime.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 74581045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74581043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117880 + ... + 118510.

It is an arithmetic number, because the mean of its divisors is an integer number (3503808).

Almost surely, 2^74581045 is an apocalyptic number.

It is an amenable number.

74581045 is a deficient number, since it is larger than the sum of its proper divisors (37540811).

74581045 is a wasteful number, since it uses less digits than its factorization.

74581045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 74581045 is about 8636.0317854904. The cubic root of 74581045 is about 420.9296207695.

The spelling of 74581045 in words is "seventy-four million, five hundred eighty-one thousand, forty-five".