13135799 has 4 divisors (see below), whose sum is σ = 13157640. Its totient is φ = 13113960.

The previous prime is 13135789. The next prime is 13135807. The reversal of 13135799 is 99753131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13135799 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 (13135729) 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, 9992 + ... + 11229.

It is an arithmetic number, because the mean of its divisors is an integer number (3289410).

Almost surely, 2^13135799 is an apocalyptic number.

13135799 is a deficient number, since it is larger than the sum of its proper divisors (21841).

13135799 is an equidigital number, since it uses as much as digits as its factorization.

13135799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21840.

The product of its digits is 25515, while the sum is 38.

The square root of 13135799 is about 3624.3342836996. The cubic root of 13135799 is about 235.9493750934.

The spelling of 13135799 in words is "thirteen million, one hundred thirty-five thousand, seven hundred ninety-nine".