13072559 has 4 divisors (see below), whose sum is σ = 13376616. Its totient is φ = 12768504.

The previous prime is 13072547. The next prime is 13072561. The reversal of 13072559 is 95527031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95527031 = 337 ⋅283463.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13072559 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 (13072519) 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, 151964 + ... + 152049.

It is an arithmetic number, because the mean of its divisors is an integer number (3344154).

Almost surely, 2^13072559 is an apocalyptic number.

13072559 is a deficient number, since it is larger than the sum of its proper divisors (304057).

13072559 is an equidigital number, since it uses as much as digits as its factorization.

13072559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304056.

The product of its (nonzero) digits is 9450, while the sum is 32.

The square root of 13072559 is about 3615.5993970571. The cubic root of 13072559 is about 235.5701201966.

It can be divided in two parts, 13072 and 559, that added together give a palindrome (13631).

The spelling of 13072559 in words is "thirteen million, seventy-two thousand, five hundred fifty-nine".