135085 has 4 divisors (see below), whose sum is σ = 162108. Its totient is φ = 108064.

The previous prime is 135077. The next prime is 135089. The reversal of 135085 is 580531.

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

It can be written as a sum of positive squares in 2 ways, for example, as 100489 + 34596 = 317^2 + 186^2 .

It is a cyclic number.

It is not a de Polignac number, because 135085 - 2³ = 135077 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135089) 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, 13504 + ... + 13513.

It is an arithmetic number, because the mean of its divisors is an integer number (40527).

2¹³⁵⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

135085 is a deficient number, since it is larger than the sum of its proper divisors (27023).

135085 is an equidigital number, since it uses as much as digits as its factorization.

135085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27022.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 135085 is about 367.5391135648. The cubic root of 135085 is about 51.3100426567.

The spelling of 135085 in words is "one hundred thirty-five thousand, eighty-five".