135313439 has 12 divisors (see below), whose sum is σ = 142342200. Its totient is φ = 128617104.

The previous prime is 135313429. The next prime is 135313441. The reversal of 135313439 is 934313531.

It is a de Polignac number, because none of the positive numbers 2^k-135313439 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 (135313429) 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 11 ways as a sum of consecutive naturals, for example, 93977 + ... + 95405.

It is an arithmetic number, because the mean of its divisors is an integer number (11861850).

Almost surely, 2^135313439 is an apocalyptic number.

135313439 is a deficient number, since it is larger than the sum of its proper divisors (7028761).

135313439 is a wasteful number, since it uses less digits than its factorization.

135313439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654 (or 1631 counting only the distinct ones).

The product of its digits is 14580, while the sum is 32.

The square root of 135313439 is about 11632.4304855004. The cubic root of 135313439 is about 513.3894942865.

The spelling of 135313439 in words is "one hundred thirty-five million, three hundred thirteen thousand, four hundred thirty-nine".