135268 has 12 divisors (see below), whose sum is σ = 270592. Its totient is φ = 57960.

The previous prime is 135257. The next prime is 135271. The reversal of 135268 is 862531.

It is a happy number.

135268 is an admirable number.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is an unprimeable number.

135268 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 3 ways as a sum of consecutive naturals, for example, 2388 + ... + 2443.

2¹³⁵²⁶⁸ is an apocalyptic number.

It is an amenable number.

135268 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135268 is a wasteful number, since it uses less digits than its factorization.

135268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4842 (or 4840 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 135268 is about 367.7879824029. The cubic root of 135268 is about 51.3332021510. Note that the first 3 decimals are identical.

Adding to 135268 its reverse (862531), we get a palindrome (997799).

The spelling of 135268 in words is "one hundred thirty-five thousand, two hundred sixty-eight".