159699613 has 2 divisors, whose sum is σ = 159699614. Its totient is φ = 159699612.

The previous prime is 159699601. The next prime is 159699637. The reversal of 159699613 is 316996951.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145274809 + 14424804 = 12053^2 + 3798^2 .

It is a cyclic number.

It is not a de Polignac number, because 159699613 - 2²⁵ = 126145181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (159699643) 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, 79849806 + 79849807.

It is an arithmetic number, because the mean of its divisors is an integer number (79849807).

Almost surely, 2^159699613 is an apocalyptic number.

It is an amenable number.

159699613 is a deficient number, since it is larger than the sum of its proper divisors (1).

159699613 is an equidigital number, since it uses as much as digits as its factorization.

159699613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 393660, while the sum is 49.

The square root of 159699613 is about 12637.2312236502. The cubic root of 159699613 is about 542.5435705837.

The spelling of 159699613 in words is "one hundred fifty-nine million, six hundred ninety-nine thousand, six hundred thirteen".