13042899 has 6 divisors (see below), whose sum is σ = 18839756. Its totient is φ = 8695260.

The previous prime is 13042891. The next prime is 13042901. The reversal of 13042899 is 99824031.

It is not a de Polignac number, because 13042899 - 2³ = 13042891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13042891) 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 5 ways as a sum of consecutive naturals, for example, 724597 + ... + 724614.

Almost surely, 2^13042899 is an apocalyptic number.

13042899 is a deficient number, since it is larger than the sum of its proper divisors (5796857).

13042899 is a wasteful number, since it uses less digits than its factorization.

13042899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449217 (or 1449214 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 13042899 is about 3611.4953966467. The cubic root of 13042899 is about 235.3918255809.

The spelling of 13042899 in words is "thirteen million, forty-two thousand, eight hundred ninety-nine".