135528 has 16 divisors (see below), whose sum is σ = 338880. Its totient is φ = 45168.

The previous prime is 135511. The next prime is 135533. The reversal of 135528 is 825531.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 5647 = 135528 / (1 + 3 + 5 + 5 + 2 + 8).

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 135498 and 135507.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2800 + ... + 2847.

It is an arithmetic number, because the mean of its divisors is an integer number (21180).

2¹³⁵⁵²⁸ is an apocalyptic number.

It is an amenable number.

135528 is an abundant number, since it is smaller than the sum of its proper divisors (203352).

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

135528 is a wasteful number, since it uses less digits than its factorization.

135528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5656 (or 5652 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 135528 is about 368.1412772293. The cubic root of 135528 is about 51.3660704580.

The spelling of 135528 in words is "one hundred thirty-five thousand, five hundred twenty-eight".