135911 has 2 divisors, whose sum is σ = 135912. Its totient is φ = 135910.

The previous prime is 135899. The next prime is 135913. The reversal of 135911 is 119531.

135911 is nontrivially palindromic in base 3.

135911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135911 - 2¹⁰ = 134887 is a prime.

Together with 135913, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 12.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 135911.

It is not a weakly prime, because it can be changed into another prime (135913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67955 + 67956.

It is an arithmetic number, because the mean of its divisors is an integer number (67956).

2¹³⁵⁹¹¹ is an apocalyptic number.

135911 is a deficient number, since it is larger than the sum of its proper divisors (1).

135911 is an equidigital number, since it uses as much as digits as its factorization.

135911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 135, while the sum is 20.

The square root of 135911 is about 368.6610909765. The cubic root of 135911 is about 51.4144115191.

The spelling of 135911 in words is "one hundred thirty-five thousand, nine hundred eleven".