135205255 has 8 divisors (see below), whose sum is σ = 162760032. Its totient is φ = 107821728.

The previous prime is 135205253. The next prime is 135205309. The reversal of 135205255 is 552502531.

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 135205255 - 2¹ = 135205253 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 (135205253) 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 7 ways as a sum of consecutive naturals, for example, 41067 + ... + 44236.

It is an arithmetic number, because the mean of its divisors is an integer number (20345004).

Almost surely, 2^135205255 is an apocalyptic number.

135205255 is a deficient number, since it is larger than the sum of its proper divisors (27554777).

135205255 is an equidigital number, since it uses as much as digits as its factorization.

135205255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85625.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 135205255 is about 11627.7794526728. The cubic root of 135205255 is about 513.2526383622.

Adding to 135205255 its reverse (552502531), we get a palindrome (687707786).

It can be divided in two parts, 135205 and 255, that added together give a triangular number (135460 = T₅₂₀).

The spelling of 135205255 in words is "one hundred thirty-five million, two hundred five thousand, two hundred fifty-five".