135544233155 has 4 divisors (see below), whose sum is σ = 162653079792. Its totient is φ = 108435386520.

The previous prime is 135544233151. The next prime is 135544233163. The reversal of 135544233155 is 551332445531.

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

It is not a de Polignac number, because 135544233155 - 2² = 135544233151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135544233151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13554423311 + ... + 13554423320.

It is an arithmetic number, because the mean of its divisors is an integer number (40663269948).

Almost surely, 2^135544233155 is an apocalyptic number.

135544233155 is a deficient number, since it is larger than the sum of its proper divisors (27108846637).

135544233155 is an equidigital number, since it uses as much as digits as its factorization.

135544233155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27108846636.

The product of its digits is 540000, while the sum is 41.

Adding to 135544233155 its reverse (551332445531), we get a palindrome (686876678686).

The spelling of 135544233155 in words is "one hundred thirty-five billion, five hundred forty-four million, two hundred thirty-three thousand, one hundred fifty-five".