135236611255 has 4 divisors (see below), whose sum is σ = 162283933512. Its totient is φ = 108189289000.

The previous prime is 135236611231. The next prime is 135236611283. The reversal of 135236611255 is 552116632531.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 135236611255 - 2⁷ = 135236611127 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13523661121 + ... + 13523661130.

It is an arithmetic number, because the mean of its divisors is an integer number (40570983378).

Almost surely, 2^135236611255 is an apocalyptic number.

135236611255 is a deficient number, since it is larger than the sum of its proper divisors (27047322257).

135236611255 is an equidigital number, since it uses as much as digits as its factorization.

135236611255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27047322256.

The product of its digits is 162000, while the sum is 40.

The spelling of 135236611255 in words is "one hundred thirty-five billion, two hundred thirty-six million, six hundred eleven thousand, two hundred fifty-five".