13279559 has 4 divisors (see below), whose sum is σ = 13638504. Its totient is φ = 12920616.

The previous prime is 13279549. The next prime is 13279571. The reversal of 13279559 is 95597231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95597231 = 2887 ⋅33113.

It is a cyclic number.

It is not a de Polignac number, because 13279559 - 2²⁰ = 12230983 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 (13279529) 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 in 3 ways as a sum of consecutive naturals, for example, 179417 + ... + 179490.

It is an arithmetic number, because the mean of its divisors is an integer number (3409626).

Almost surely, 2^13279559 is an apocalyptic number.

13279559 is a deficient number, since it is larger than the sum of its proper divisors (358945).

13279559 is an equidigital number, since it uses as much as digits as its factorization.

13279559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358944.

The product of its digits is 85050, while the sum is 41.

The square root of 13279559 is about 3644.1129236071. The cubic root of 13279559 is about 236.8070081682.

The spelling of 13279559 in words is "thirteen million, two hundred seventy-nine thousand, five hundred fifty-nine".