135115439 has 8 divisors (see below), whose sum is σ = 144672480. Its totient is φ = 125737216.

The previous prime is 135115423. The next prime is 135115447. The reversal of 135115439 is 934511531.

135115439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135115439 - 2⁴ = 135115423 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 (135115469) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43139 + ... + 46164.

It is an arithmetic number, because the mean of its divisors is an integer number (18084060).

Almost surely, 2^135115439 is an apocalyptic number.

135115439 is a deficient number, since it is larger than the sum of its proper divisors (9557041).

135115439 is an equidigital number, since it uses as much as digits as its factorization.

135115439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89409.

The product of its digits is 8100, while the sum is 32.

The square root of 135115439 is about 11623.9166807062. The cubic root of 135115439 is about 513.1389630214.

The spelling of 135115439 in words is "one hundred thirty-five million, one hundred fifteen thousand, four hundred thirty-nine".