73245013 has 2 divisors, whose sum is σ = 73245014. Its totient is φ = 73245012.

The previous prime is 73245001. The next prime is 73245017. The reversal of 73245013 is 31054237.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73153809 + 91204 = 8553^2 + 302^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73245013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73245017) 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 as a sum of consecutive naturals, namely, 36622506 + 36622507.

It is an arithmetic number, because the mean of its divisors is an integer number (36622507).

Almost surely, 2^73245013 is an apocalyptic number.

It is an amenable number.

73245013 is a deficient number, since it is larger than the sum of its proper divisors (1).

73245013 is an equidigital number, since it uses as much as digits as its factorization.

73245013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 73245013 is about 8558.3300357021. The cubic root of 73245013 is about 418.4009739499.

The spelling of 73245013 in words is "seventy-three million, two hundred forty-five thousand, thirteen".