73215081 has 12 divisors (see below), whose sum is σ = 105830400. Its totient is φ = 48775320.

The previous prime is 73215061. The next prime is 73215091. The reversal of 73215081 is 18051237.

It is not a de Polignac number, because 73215081 - 2⁶ = 73215017 is a prime.

It is a super-2 number, since 2×73215081² = 10720896171673122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73215011) 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 11 ways as a sum of consecutive naturals, for example, 19896 + ... + 23286.

It is an arithmetic number, because the mean of its divisors is an integer number (8819200).

Almost surely, 2^73215081 is an apocalyptic number.

It is an amenable number.

73215081 is a deficient number, since it is larger than the sum of its proper divisors (32615319).

73215081 is a wasteful number, since it uses less digits than its factorization.

73215081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5796 (or 5793 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 27.

The square root of 73215081 is about 8556.5811513711. The cubic root of 73215081 is about 418.3439721884.

The spelling of 73215081 in words is "seventy-three million, two hundred fifteen thousand, eighty-one".