135265 has 8 divisors (see below), whose sum is σ = 174888. Its totient is φ = 99840.

The previous prime is 135257. The next prime is 135271. The reversal of 135265 is 562531.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 576 + 134689 = 24^2 + 367^2 .

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

It is not a de Polignac number, because 135265 - 2³ = 135257 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 976 + ... + 1105.

It is an arithmetic number, because the mean of its divisors is an integer number (21861).

2¹³⁵²⁶⁵ is an apocalyptic number.

It is an amenable number.

135265 is a deficient number, since it is larger than the sum of its proper divisors (39623).

135265 is a wasteful number, since it uses less digits than its factorization.

135265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2099.

The product of its digits is 900, while the sum is 22.

The square root of 135265 is about 367.7839039436. The cubic root of 135265 is about 51.3328226557.

Adding to 135265 its reverse (562531), we get a palindrome (697796).

It can be divided in two parts, 13526 and 5, that added together give a palindrome (13531).

The spelling of 135265 in words is "one hundred thirty-five thousand, two hundred sixty-five".