73249513 has 2 divisors, whose sum is σ = 73249514. Its totient is φ = 73249512.

The previous prime is 73249499. The next prime is 73249523. The reversal of 73249513 is 31594237.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72726784 + 522729 = 8528^2 + 723^2 .

It is an emirp because it is prime and its reverse (31594237) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73249513 - 2²⁵ = 39695081 is a prime.

It is not a weakly prime, because it can be changed into another prime (73249523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36624756 + 36624757.

It is an arithmetic number, because the mean of its divisors is an integer number (36624757).

Almost surely, 2^73249513 is an apocalyptic number.

It is an amenable number.

73249513 is a deficient number, since it is larger than the sum of its proper divisors (1).

73249513 is an equidigital number, since it uses as much as digits as its factorization.

73249513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 34.

The square root of 73249513 is about 8558.5929334208. The cubic root of 73249513 is about 418.4095422958.

The spelling of 73249513 in words is "seventy-three million, two hundred forty-nine thousand, five hundred thirteen".