135885 has 8 divisors (see below), whose sum is σ = 217440. Its totient is φ = 72464.

The previous prime is 135859. The next prime is 135887. The reversal of 135885 is 588531.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135885 - 2⁷ = 135757 is a prime.

It is a Curzon number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4515 + ... + 4544.

It is an arithmetic number, because the mean of its divisors is an integer number (27180).

2¹³⁵⁸⁸⁵ is an apocalyptic number.

135885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135885 is a deficient number, since it is larger than the sum of its proper divisors (81555).

135885 is an equidigital number, since it uses as much as digits as its factorization.

135885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9067.

The product of its digits is 4800, while the sum is 30.

The square root of 135885 is about 368.6258265504. The cubic root of 135885 is about 51.4111327559.

The spelling of 135885 in words is "one hundred thirty-five thousand, eight hundred eighty-five".