135628 has 12 divisors (see below), whose sum is σ = 243432. Its totient is φ = 66080.

The previous prime is 135623. The next prime is 135637. The reversal of 135628 is 826531.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (135623) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 250 + ... + 577.

It is an arithmetic number, because the mean of its divisors is an integer number (20286).

2¹³⁵⁶²⁸ is an apocalyptic number.

It is an amenable number.

135628 is a deficient number, since it is larger than the sum of its proper divisors (107804).

135628 is a wasteful number, since it uses less digits than its factorization.

135628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872 (or 870 counting only the distinct ones).

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

The square root of 135628 is about 368.2770696093. The cubic root of 135628 is about 51.3787009211.

The spelling of 135628 in words is "one hundred thirty-five thousand, six hundred twenty-eight".