135834239 has 4 divisors (see below), whose sum is σ = 137695056. Its totient is φ = 133973424.

The previous prime is 135834221. The next prime is 135834269. The reversal of 135834239 is 932438531.

135834239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 135834239 - 2²⁴ = 119057023 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 (135834269) 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, 930299 + ... + 930444.

It is an arithmetic number, because the mean of its divisors is an integer number (34423764).

Almost surely, 2^135834239 is an apocalyptic number.

135834239 is a deficient number, since it is larger than the sum of its proper divisors (1860817).

135834239 is an equidigital number, since it uses as much as digits as its factorization.

135834239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860816.

The product of its digits is 77760, while the sum is 38.

The square root of 135834239 is about 11654.7946785861. The cubic root of 135834239 is about 514.0473026965.

The spelling of 135834239 in words is "one hundred thirty-five million, eight hundred thirty-four thousand, two hundred thirty-nine".