135269 has 8 divisors (see below), whose sum is σ = 146520. Its totient is φ = 124416.

The previous prime is 135257. The next prime is 135271. The reversal of 135269 is 962531.

It can be written as a sum of positive squares in 4 ways, for example, as 52900 + 82369 = 230^2 + 287^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135269 is a prime.

It is a super-2 number, since 2×135269² = 36595404722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1187 + ... + 1295.

It is an arithmetic number, because the mean of its divisors is an integer number (18315).

2¹³⁵²⁶⁹ is an apocalyptic number.

It is an amenable number.

135269 is a deficient number, since it is larger than the sum of its proper divisors (11251).

135269 is a wasteful number, since it uses less digits than its factorization.

135269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199.

The product of its digits is 1620, while the sum is 26.

The square root of 135269 is about 367.7893418793. The cubic root of 135269 is about 51.3333286483. Note that the first 4 decimals are identical.

It can be divided in two parts, 135 and 269, that multiplied together give a triangular number (36315 = T₂₆₉).

The spelling of 135269 in words is "one hundred thirty-five thousand, two hundred sixty-nine".