8135885239 has 2 divisors, whose sum is σ = 8135885240. Its totient is φ = 8135885238.

The previous prime is 8135885209. The next prime is 8135885273. The reversal of 8135885239 is 9325885318.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8135885239 - 2¹¹ = 8135883191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8135885209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4067942619 + 4067942620.

It is an arithmetic number, because the mean of its divisors is an integer number (4067942620).

Almost surely, 2^8135885239 is an apocalyptic number.

8135885239 is a deficient number, since it is larger than the sum of its proper divisors (1).

8135885239 is an equidigital number, since it uses as much as digits as its factorization.

8135885239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2073600, while the sum is 52.

The square root of 8135885239 is about 90199.1421189803. The cubic root of 8135885239 is about 2011.2602542764.

The spelling of 8135885239 in words is "eight billion, one hundred thirty-five million, eight hundred eighty-five thousand, two hundred thirty-nine".