135635 has 4 divisors (see below), whose sum is σ = 162768. Its totient is φ = 108504.

The previous prime is 135623. The next prime is 135637. The reversal of 135635 is 536531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135635 - 2⁶ = 135571 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135635.

It is not an unprimeable number, because it can be changed into a prime (135637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13559 + ... + 13568.

It is an arithmetic number, because the mean of its divisors is an integer number (40692).

2¹³⁵⁶³⁵ is an apocalyptic number.

135635 is a deficient number, since it is larger than the sum of its proper divisors (27133).

135635 is an equidigital number, since it uses as much as digits as its factorization.

135635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27132.

The product of its digits is 1350, while the sum is 23.

The square root of 135635 is about 368.2865732008. The cubic root of 135635 is about 51.3795848210.

The spelling of 135635 in words is "one hundred thirty-five thousand, six hundred thirty-five".