135634459 has 2 divisors, whose sum is σ = 135634460. Its totient is φ = 135634458.

The previous prime is 135634441. The next prime is 135634463. The reversal of 135634459 is 954436531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135634459 - 2⁹ = 135633947 is a prime.

It is not a weakly prime, because it can be changed into another prime (135634439) 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, 67817229 + 67817230.

It is an arithmetic number, because the mean of its divisors is an integer number (67817230).

Almost surely, 2^135634459 is an apocalyptic number.

135634459 is a deficient number, since it is larger than the sum of its proper divisors (1).

135634459 is an equidigital number, since it uses as much as digits as its factorization.

135634459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 40.

The square root of 135634459 is about 11646.2208033336. The cubic root of 135634459 is about 513.7951650926.

The spelling of 135634459 in words is "one hundred thirty-five million, six hundred thirty-four thousand, four hundred fifty-nine".