73115745 has 16 divisors (see below), whose sum is σ = 117237120. Its totient is φ = 38911104.

The previous prime is 73115741. The next prime is 73115747. The reversal of 73115745 is 54751137.

It is not a de Polignac number, because 73115745 - 2² = 73115741 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73115741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2301 + ... + 12309.

It is an arithmetic number, because the mean of its divisors is an integer number (7327320).

Almost surely, 2^73115745 is an apocalyptic number.

It is an amenable number.

73115745 is a deficient number, since it is larger than the sum of its proper divisors (44121375).

73115745 is a wasteful number, since it uses less digits than its factorization.

73115745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10504.

The product of its digits is 14700, while the sum is 33.

The square root of 73115745 is about 8550.7745263222. The cubic root of 73115745 is about 418.1546877556.

The spelling of 73115745 in words is "seventy-three million, one hundred fifteen thousand, seven hundred forty-five".