73133118 has 20 divisors (see below), whose sum is σ = 163872720. Its totient is φ = 24377652.

The previous prime is 73133111. The next prime is 73133183. The reversal of 73133118 is 81133137.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 73133091 and 73133100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73133111) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 225558 + ... + 225881.

It is an arithmetic number, because the mean of its divisors is an integer number (8193636).

Almost surely, 2^73133118 is an apocalyptic number.

73133118 is an abundant number, since it is smaller than the sum of its proper divisors (90739602).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73133118 is a wasteful number, since it uses less digits than its factorization.

73133118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451453 (or 451444 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 73133118 is about 8551.7903388706. The cubic root of 73133118 is about 418.1878043166.

The spelling of 73133118 in words is "seventy-three million, one hundred thirty-three thousand, one hundred eighteen".