13191559 has 2 divisors, whose sum is σ = 13191560. Its totient is φ = 13191558.

The previous prime is 13191547. The next prime is 13191599. The reversal of 13191559 is 95519131.

It is a weak prime.

It is an emirp because it is prime and its reverse (95519131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13191559 - 2⁵ = 13191527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13191599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6595779 + 6595780.

It is an arithmetic number, because the mean of its divisors is an integer number (6595780).

Almost surely, 2^13191559 is an apocalyptic number.

13191559 is a deficient number, since it is larger than the sum of its proper divisors (1).

13191559 is an equidigital number, since it uses as much as digits as its factorization.

13191559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6075, while the sum is 34.

The square root of 13191559 is about 3632.0185847542. The cubic root of 13191559 is about 236.2827633891.

The spelling of 13191559 in words is "thirteen million, one hundred ninety-one thousand, five hundred fifty-nine".