135799259 has 2 divisors, whose sum is σ = 135799260. Its totient is φ = 135799258.

The previous prime is 135799253. The next prime is 135799267. The reversal of 135799259 is 952997531.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (952997531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135799259 - 2⁴ = 135799243 is a prime.

It is not a weakly prime, because it can be changed into another prime (135799253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67899629 + 67899630.

It is an arithmetic number, because the mean of its divisors is an integer number (67899630).

Almost surely, 2^135799259 is an apocalyptic number.

135799259 is a deficient number, since it is larger than the sum of its proper divisors (1).

135799259 is an equidigital number, since it uses as much as digits as its factorization.

135799259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 765450, while the sum is 50.

The square root of 135799259 is about 11653.2939120233. The cubic root of 135799259 is about 514.0031731296.

The spelling of 135799259 in words is "one hundred thirty-five million, seven hundred ninety-nine thousand, two hundred fifty-nine".