136785 has 16 divisors (see below), whose sum is σ = 239040. Its totient is φ = 66240.

The previous prime is 136777. The next prime is 136811. The reversal of 136785 is 587631.

It is not a de Polignac number, because 136785 - 2³ = 136777 is a prime.

136785 is a lucky number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 250 + ... + 579.

It is an arithmetic number, because the mean of its divisors is an integer number (14940).

2¹³⁶⁷⁸⁵ is an apocalyptic number.

136785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

136785 is a deficient number, since it is larger than the sum of its proper divisors (102255).

136785 is a wasteful number, since it uses less digits than its factorization.

136785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848.

The product of its digits is 5040, while the sum is 30.

The square root of 136785 is about 369.8445619446. The cubic root of 136785 is about 51.5243859752.

The spelling of 136785 in words is "one hundred thirty-six thousand, seven hundred eighty-five".