135211 has 2 divisors, whose sum is σ = 135212. Its totient is φ = 135210.

The previous prime is 135209. The next prime is 135221. The reversal of 135211 is 112531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135211 - 2¹ = 135209 is a prime.

Together with 135209, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 135191 and 135200.

It is not a weakly prime, because it can be changed into another prime (135221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67605 + 67606.

It is an arithmetic number, because the mean of its divisors is an integer number (67606).

2¹³⁵²¹¹ is an apocalyptic number.

135211 is a deficient number, since it is larger than the sum of its proper divisors (1).

135211 is an equidigital number, since it uses as much as digits as its factorization.

135211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30, while the sum is 13.

The square root of 135211 is about 367.7104839408. The cubic root of 135211 is about 51.3259907790.

Adding to 135211 its reverse (112531), we get a palindrome (247742).

The spelling of 135211 in words is "one hundred thirty-five thousand, two hundred eleven".