73015313 has 4 divisors (see below), whose sum is σ = 83446080. Its totient is φ = 62584548.

The previous prime is 73015303. The next prime is 73015343. The reversal of 73015313 is 31351037.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 73015313 - 2⁶ = 73015249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73015303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5215373 + ... + 5215386.

It is an arithmetic number, because the mean of its divisors is an integer number (20861520).

Almost surely, 2^73015313 is an apocalyptic number.

It is an amenable number.

73015313 is a deficient number, since it is larger than the sum of its proper divisors (10430767).

73015313 is a wasteful number, since it uses less digits than its factorization.

73015313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10430766.

The product of its (nonzero) digits is 945, while the sum is 23.

The square root of 73015313 is about 8544.8998238715. The cubic root of 73015313 is about 417.9631405270.

The spelling of 73015313 in words is "seventy-three million, fifteen thousand, three hundred thirteen".