13135139 has 4 divisors (see below), whose sum is σ = 13706256. Its totient is φ = 12564024.

The previous prime is 13135127. The next prime is 13135141. The reversal of 13135139 is 93153131.

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 13135139 - 2¹⁶ = 13069603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13135189) 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 3 ways as a sum of consecutive naturals, for example, 285524 + ... + 285569.

It is an arithmetic number, because the mean of its divisors is an integer number (3426564).

Almost surely, 2^13135139 is an apocalyptic number.

13135139 is a deficient number, since it is larger than the sum of its proper divisors (571117).

13135139 is an equidigital number, since it uses as much as digits as its factorization.

13135139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571116.

The product of its digits is 1215, while the sum is 26.

The square root of 13135139 is about 3624.2432313519. The cubic root of 13135139 is about 235.9454233177.

The spelling of 13135139 in words is "thirteen million, one hundred thirty-five thousand, one hundred thirty-nine".