13159409 has 2 divisors, whose sum is σ = 13159410. Its totient is φ = 13159408.

The previous prime is 13159379. The next prime is 13159429. The reversal of 13159409 is 90495131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12673600 + 485809 = 3560^2 + 697^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13159409 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13159429) 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, 6579704 + 6579705.

It is an arithmetic number, because the mean of its divisors is an integer number (6579705).

Almost surely, 2^13159409 is an apocalyptic number.

It is an amenable number.

13159409 is a deficient number, since it is larger than the sum of its proper divisors (1).

13159409 is an equidigital number, since it uses as much as digits as its factorization.

13159409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 13159409 is about 3627.5899713170. The cubic root of 13159409 is about 236.0906539118.

The spelling of 13159409 in words is "thirteen million, one hundred fifty-nine thousand, four hundred nine".