135535549 has 2 divisors, whose sum is σ = 135535550. Its totient is φ = 135535548.

The previous prime is 135535541. The next prime is 135535553. The reversal of 135535549 is 945535531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82682649 + 52852900 = 9093^2 + 7270^2 .

It is a cyclic number.

It is not a de Polignac number, because 135535549 - 2³ = 135535541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135535541) 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, 67767774 + 67767775.

It is an arithmetic number, because the mean of its divisors is an integer number (67767775).

Almost surely, 2^135535549 is an apocalyptic number.

It is an amenable number.

135535549 is a deficient number, since it is larger than the sum of its proper divisors (1).

135535549 is an equidigital number, since it uses as much as digits as its factorization.

135535549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 202500, while the sum is 40.

The square root of 135535549 is about 11641.9735869826. The cubic root of 135535549 is about 513.6702414845.

The spelling of 135535549 in words is "one hundred thirty-five million, five hundred thirty-five thousand, five hundred forty-nine".