13291959 has 4 divisors (see below), whose sum is σ = 17722616. Its totient is φ = 8861304.

The previous prime is 13291939. The next prime is 13292009. The reversal of 13291959 is 95919231.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13291959 - 2¹⁷ = 13160887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13291919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2215324 + ... + 2215329.

It is an arithmetic number, because the mean of its divisors is an integer number (4430654).

Almost surely, 2^13291959 is an apocalyptic number.

13291959 is a deficient number, since it is larger than the sum of its proper divisors (4430657).

13291959 is an equidigital number, since it uses as much as digits as its factorization.

13291959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4430656.

The product of its digits is 21870, while the sum is 39.

The square root of 13291959 is about 3645.8139009006. The cubic root of 13291959 is about 236.8806926784.

The spelling of 13291959 in words is "thirteen million, two hundred ninety-one thousand, nine hundred fifty-nine".