13159789 has 2 divisors, whose sum is σ = 13159790. Its totient is φ = 13159788.

The previous prime is 13159781. The next prime is 13159793. The reversal of 13159789 is 98795131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8820900 + 4338889 = 2970^2 + 2083^2 .

It is a cyclic number.

It is not a de Polignac number, because 13159789 - 2³ = 13159781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13159781) 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, 6579894 + 6579895.

It is an arithmetic number, because the mean of its divisors is an integer number (6579895).

Almost surely, 2^13159789 is an apocalyptic number.

It is an amenable number.

13159789 is a deficient number, since it is larger than the sum of its proper divisors (1).

13159789 is an equidigital number, since it uses as much as digits as its factorization.

13159789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 43.

The square root of 13159789 is about 3627.6423473104. The cubic root of 13159789 is about 236.0929263944.

The spelling of 13159789 in words is "thirteen million, one hundred fifty-nine thousand, seven hundred eighty-nine".