13042885 has 4 divisors (see below), whose sum is σ = 15651468. Its totient is φ = 10434304.

The previous prime is 13042853. The next prime is 13042891. The reversal of 13042885 is 58824031.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2172676 + 10870209 = 1474^2 + 3297^2 .

It is a cyclic number.

It is not a de Polignac number, because 13042885 - 2⁵ = 13042853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1304284 + ... + 1304293.

It is an arithmetic number, because the mean of its divisors is an integer number (3912867).

Almost surely, 2^13042885 is an apocalyptic number.

It is an amenable number.

13042885 is a deficient number, since it is larger than the sum of its proper divisors (2608583).

13042885 is an equidigital number, since it uses as much as digits as its factorization.

13042885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2608582.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 13042885 is about 3611.4934583909. The cubic root of 13042885 is about 235.3917413591.

The spelling of 13042885 in words is "thirteen million, forty-two thousand, eight hundred eighty-five".