79165013 has 2 divisors, whose sum is σ = 79165014. Its totient is φ = 79165012.

The previous prime is 79164997. The next prime is 79165027. The reversal of 79165013 is 31056197.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54493924 + 24671089 = 7382^2 + 4967^2 .

It is an emirp because it is prime and its reverse (31056197) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79165013 - 2⁴ = 79164997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79165033) 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, 39582506 + 39582507.

It is an arithmetic number, because the mean of its divisors is an integer number (39582507).

Almost surely, 2^79165013 is an apocalyptic number.

It is an amenable number.

79165013 is a deficient number, since it is larger than the sum of its proper divisors (1).

79165013 is an equidigital number, since it uses as much as digits as its factorization.

79165013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670, while the sum is 32.

The square root of 79165013 is about 8897.4722814966. The cubic root of 79165013 is about 429.3825878678.

The spelling of 79165013 in words is "seventy-nine million, one hundred sixty-five thousand, thirteen".