73115445 has 32 divisors (see below), whose sum is σ = 127782144. Its totient is φ = 35481600.

The previous prime is 73115431. The next prime is 73115473. The reversal of 73115445 is 54451137.

It is not a de Polignac number, because 73115445 - 2⁶ = 73115381 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11205 + ... + 16485.

It is an arithmetic number, because the mean of its divisors is an integer number (3993192).

Almost surely, 2^73115445 is an apocalyptic number.

It is an amenable number.

73115445 is a deficient number, since it is larger than the sum of its proper divisors (54666699).

73115445 is a wasteful number, since it uses less digits than its factorization.

73115445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5373.

The product of its digits is 8400, while the sum is 30.

The square root of 73115445 is about 8550.7569840336. The cubic root of 73115445 is about 418.1541158469.

The spelling of 73115445 in words is "seventy-three million, one hundred fifteen thousand, four hundred forty-five".