73518081 has 96 divisors (see below), whose sum is σ = 136055808. Its totient is φ = 34836480.

The previous prime is 73518077. The next prime is 73518083. The reversal of 73518081 is 18081537.

It is not a de Polignac number, because 73518081 - 2² = 73518077 is a prime.

It is a super-2 number, since 2×73518081² = 10809816467845122, which contains 22 as substring.

73518081 is a modest number, since divided by 18081 gives 735 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73518083) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1007061 + ... + 1007133.

It is an arithmetic number, because the mean of its divisors is an integer number (1417248).

Almost surely, 2^73518081 is an apocalyptic number.

It is an amenable number.

73518081 is a deficient number, since it is larger than the sum of its proper divisors (62537727).

73518081 is a wasteful number, since it uses less digits than its factorization.

73518081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 33.

The square root of 73518081 is about 8574.2685402313. The cubic root of 73518081 is about 418.9202822426.

The spelling of 73518081 in words is "seventy-three million, five hundred eighteen thousand, eighty-one".