73245015 has 24 divisors (see below), whose sum is σ = 130392288. Its totient is φ = 38007360.

The previous prime is 73245013. The next prime is 73245017. The reversal of 73245015 is 51054237.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (73245013) and next prime (73245017).

It is not a de Polignac number, because 73245015 - 2¹ = 73245013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73245015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73245013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20331 + ... + 23660.

It is an arithmetic number, because the mean of its divisors is an integer number (5433012).

Almost surely, 2^73245015 is an apocalyptic number.

73245015 is a deficient number, since it is larger than the sum of its proper divisors (57147273).

73245015 is a wasteful number, since it uses less digits than its factorization.

73245015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44039 (or 44036 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 73245015 is about 8558.3301525473. The cubic root of 73245015 is about 418.4009777581.

The spelling of 73245015 in words is "seventy-three million, two hundred forty-five thousand, fifteen".