135525 has 24 divisors (see below), whose sum is σ = 243040. Its totient is φ = 66240.

The previous prime is 135511. The next prime is 135533. The reversal of 135525 is 525531.

It is not a de Polignac number, because 135525 - 2⁶ = 135461 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 906 + ... + 1044.

2¹³⁵⁵²⁵ is an apocalyptic number.

135525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135525 is a deficient number, since it is larger than the sum of its proper divisors (107515).

135525 is a wasteful number, since it uses less digits than its factorization.

135525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165 (or 160 counting only the distinct ones).

The product of its digits is 750, while the sum is 21.

The square root of 135525 is about 368.1372026840. The cubic root of 135525 is about 51.3656914482.

The spelling of 135525 in words is "one hundred thirty-five thousand, five hundred twenty-five".