73163445 has 8 divisors (see below), whose sum is σ = 117061536. Its totient is φ = 39020496.

The previous prime is 73163399. The next prime is 73163449. The reversal of 73163445 is 54436137.

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

It is not a de Polignac number, because 73163445 - 2⁹ = 73162933 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73163449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2438767 + ... + 2438796.

It is an arithmetic number, because the mean of its divisors is an integer number (14632692).

Almost surely, 2^73163445 is an apocalyptic number.

It is an amenable number.

73163445 is a deficient number, since it is larger than the sum of its proper divisors (43898091).

73163445 is a wasteful number, since it uses less digits than its factorization.

73163445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4877571.

The product of its digits is 30240, while the sum is 33.

The square root of 73163445 is about 8553.5632925699. The cubic root of 73163445 is about 418.2456013367.

The spelling of 73163445 in words is "seventy-three million, one hundred sixty-three thousand, four hundred forty-five".