135886 has 4 divisors (see below), whose sum is σ = 203832. Its totient is φ = 67942.

The previous prime is 135859. The next prime is 135887. The reversal of 135886 is 688531.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 as a sum of consecutive naturals, namely, 33970 + ... + 33973.

It is an arithmetic number, because the mean of its divisors is an integer number (50958).

2¹³⁵⁸⁸⁶ is an apocalyptic number.

135886 is a deficient number, since it is larger than the sum of its proper divisors (67946).

135886 is an equidigital number, since it uses as much as digits as its factorization.

135886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67945.

The product of its digits is 5760, while the sum is 31.

The square root of 135886 is about 368.6271829369. The cubic root of 135886 is about 51.4112588699.

It can be divided in two parts, 1358 and 86, that added together give a square (1444 = 38²).

The spelling of 135886 in words is "one hundred thirty-five thousand, eight hundred eighty-six".