73115579 has 2 divisors, whose sum is σ = 73115580. Its totient is φ = 73115578.

The previous prime is 73115557. The next prime is 73115599. The reversal of 73115579 is 97551137.

It is a strong prime.

It is an emirp because it is prime and its reverse (97551137) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73115579 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (73115519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36557789 + 36557790.

It is an arithmetic number, because the mean of its divisors is an integer number (36557790).

Almost surely, 2^73115579 is an apocalyptic number.

73115579 is a deficient number, since it is larger than the sum of its proper divisors (1).

73115579 is an equidigital number, since it uses as much as digits as its factorization.

73115579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33075, while the sum is 38.

The square root of 73115579 is about 8550.7648195936. The cubic root of 73115579 is about 418.1543712996.

The spelling of 73115579 in words is "seventy-three million, one hundred fifteen thousand, five hundred seventy-nine".