135204445239 has 4 divisors (see below), whose sum is σ = 180272593656. Its totient is φ = 90136296824.

The previous prime is 135204445217. The next prime is 135204445247. The reversal of 135204445239 is 932544402531.

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 135204445239 - 2²⁸ = 134936009783 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135204445239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135204445039) 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, 22534074204 + ... + 22534074209.

It is an arithmetic number, because the mean of its divisors is an integer number (45068148414).

Almost surely, 2^135204445239 is an apocalyptic number.

135204445239 is a deficient number, since it is larger than the sum of its proper divisors (45068148417).

135204445239 is an equidigital number, since it uses as much as digits as its factorization.

135204445239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45068148416.

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 135204445239 in words is "one hundred thirty-five billion, two hundred four million, four hundred forty-five thousand, two hundred thirty-nine".