135511 has 2 divisors, whose sum is σ = 135512. Its totient is φ = 135510.

The previous prime is 135497. The next prime is 135533. The reversal of 135511 is 115531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135511 - 2⁵ = 135479 is a prime.

It is a super-2 number, since 2×135511² = 36726462242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67755 + 67756.

It is an arithmetic number, because the mean of its divisors is an integer number (67756).

2¹³⁵⁵¹¹ is an apocalyptic number.

135511 is a deficient number, since it is larger than the sum of its proper divisors (1).

135511 is an equidigital number, since it uses as much as digits as its factorization.

135511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75, while the sum is 16.

The square root of 135511 is about 368.1181875431. The cubic root of 135511 is about 51.3639226615.

It can be divided in two parts, 135 and 511, that added together give a palindrome (646).

The spelling of 135511 in words is "one hundred thirty-five thousand, five hundred eleven".