135321279 has 32 divisors (see below), whose sum is σ = 194745600. Its totient is φ = 83408640.

The previous prime is 135321271. The next prime is 135321299. The reversal of 135321279 is 972123531.

135321279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 135321279 - 2³ = 135321271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135321271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 210132 + ... + 210774.

It is an arithmetic number, because the mean of its divisors is an integer number (6085800).

Almost surely, 2^135321279 is an apocalyptic number.

135321279 is a deficient number, since it is larger than the sum of its proper divisors (59424321).

135321279 is a wasteful number, since it uses less digits than its factorization.

135321279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775.

The product of its digits is 11340, while the sum is 33.

The square root of 135321279 is about 11632.7674695233. The cubic root of 135321279 is about 513.3994092808.

The spelling of 135321279 in words is "one hundred thirty-five million, three hundred twenty-one thousand, two hundred seventy-nine".