73013215 has 48 divisors (see below), whose sum is σ = 105719040. Its totient is φ = 48153600.

The previous prime is 73013209. The next prime is 73013261. The reversal of 73013215 is 51231037.

It is not a de Polignac number, because 73013215 - 2³ = 73013207 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 318721 + ... + 318949.

It is an arithmetic number, because the mean of its divisors is an integer number (2202480).

Almost surely, 2^73013215 is an apocalyptic number.

73013215 is a deficient number, since it is larger than the sum of its proper divisors (32705825).

73013215 is a wasteful number, since it uses less digits than its factorization.

73013215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 73013215 is about 8544.7770597014. Note that the first 3 decimals coincide. The cubic root of 73013215 is about 417.9591372797.

The spelling of 73013215 in words is "seventy-three million, thirteen thousand, two hundred fifteen".