13045559 has 4 divisors (see below), whose sum is σ = 13080360. Its totient is φ = 13010760.

The previous prime is 13045553. The next prime is 13045573. The reversal of 13045559 is 95554031.

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

It is a cyclic number.

It is not a de Polignac number, because 13045559 - 2⁸ = 13045303 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 (13045553) 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, 16832 + ... + 17589.

It is an arithmetic number, because the mean of its divisors is an integer number (3270090).

Almost surely, 2^13045559 is an apocalyptic number.

13045559 is a deficient number, since it is larger than the sum of its proper divisors (34801).

13045559 is an equidigital number, since it uses as much as digits as its factorization.

13045559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34800.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 13045559 is about 3611.8636463743. The cubic root of 13045559 is about 235.4078266170.

The spelling of 13045559 in words is "thirteen million, forty-five thousand, five hundred fifty-nine".