135605611 has 2 divisors, whose sum is σ = 135605612. Its totient is φ = 135605610.

The previous prime is 135605599. The next prime is 135605663. The reversal of 135605611 is 116506531.

It is a weak prime.

It is an emirp because it is prime and its reverse (116506531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135605611 - 2¹¹ = 135603563 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135605611.

It is not a weakly prime, because it can be changed into another prime (135615611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67802805 + 67802806.

It is an arithmetic number, because the mean of its divisors is an integer number (67802806).

Almost surely, 2^135605611 is an apocalyptic number.

135605611 is a deficient number, since it is larger than the sum of its proper divisors (1).

135605611 is an equidigital number, since it uses as much as digits as its factorization.

135605611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 135605611 is about 11644.9822241170. The cubic root of 135605611 is about 513.7587362627.

The spelling of 135605611 in words is "one hundred thirty-five million, six hundred five thousand, six hundred eleven".