159565013 has 2 divisors, whose sum is σ = 159565014. Its totient is φ = 159565012.

The previous prime is 159564997. The next prime is 159565039. The reversal of 159565013 is 310565951.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93354244 + 66210769 = 9662^2 + 8137^2 .

It is an emirp because it is prime and its reverse (310565951) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 159565013 - 2⁴ = 159564997 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159565073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79782506 + 79782507.

It is an arithmetic number, because the mean of its divisors is an integer number (79782507).

Almost surely, 2^159565013 is an apocalyptic number.

It is an amenable number.

159565013 is a deficient number, since it is larger than the sum of its proper divisors (1).

159565013 is an equidigital number, since it uses as much as digits as its factorization.

159565013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20250, while the sum is 35.

The square root of 159565013 is about 12631.9045674039. The cubic root of 159565013 is about 542.3911033168.

The spelling of 159565013 in words is "one hundred fifty-nine million, five hundred sixty-five thousand, thirteen".