136185 has 16 divisors (see below), whose sum is σ = 249216. Its totient is φ = 62208.

The previous prime is 136177. The next prime is 136189. The reversal of 136185 is 581631.

It is not a de Polignac number, because 136185 - 2³ = 136177 is a prime.

136185 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (136189) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 544 + ... + 753.

It is an arithmetic number, because the mean of its divisors is an integer number (15576).

2¹³⁶¹⁸⁵ is an apocalyptic number.

136185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136185 is a deficient number, since it is larger than the sum of its proper divisors (113031).

136185 is a wasteful number, since it uses less digits than its factorization.

136185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312.

The product of its digits is 720, while the sum is 24.

The square root of 136185 is about 369.0325188923. The cubic root of 136185 is about 51.4489392429.

Subtracting from 136185 its sum of digits (24), we obtain a square (136161 = 369²).

The spelling of 136185 in words is "one hundred thirty-six thousand, one hundred eighty-five".