135535321 has 4 divisors (see below), whose sum is σ = 135656500. Its totient is φ = 135414144.

The previous prime is 135535313. The next prime is 135535369. The reversal of 135535321 is 123535531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 75255625 + 60279696 = 8675^2 + 7764^2 .

It is a cyclic number.

It is not a de Polignac number, because 135535321 - 2³ = 135535313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135535321.

It is not an unprimeable number, because it can be changed into a prime (135535391) 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 3 ways as a sum of consecutive naturals, for example, 58896 + ... + 61153.

It is an arithmetic number, because the mean of its divisors is an integer number (33914125).

Almost surely, 2^135535321 is an apocalyptic number.

It is an amenable number.

135535321 is a deficient number, since it is larger than the sum of its proper divisors (121179).

135535321 is a wasteful number, since it uses less digits than its factorization.

135535321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121178.

The product of its digits is 6750, while the sum is 28.

The square root of 135535321 is about 11641.9637948243. The cubic root of 135535321 is about 513.6699534497.

The spelling of 135535321 in words is "one hundred thirty-five million, five hundred thirty-five thousand, three hundred twenty-one".