135112562243 has 4 divisors (see below), whose sum is σ = 143060360040. Its totient is φ = 127164764448.

The previous prime is 135112562239. The next prime is 135112562287. The reversal of 135112562243 is 342265211531.

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

It is a cyclic number.

It is not a de Polignac number, because 135112562243 - 2² = 135112562239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135112562203) 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, 3973898873 + ... + 3973898906.

It is an arithmetic number, because the mean of its divisors is an integer number (35765090010).

Almost surely, 2^135112562243 is an apocalyptic number.

135112562243 is a deficient number, since it is larger than the sum of its proper divisors (7947797797).

135112562243 is an equidigital number, since it uses as much as digits as its factorization.

135112562243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7947797796.

The product of its digits is 43200, while the sum is 35.

Adding to 135112562243 its reverse (342265211531), we get a palindrome (477377773774).

The spelling of 135112562243 in words is "one hundred thirty-five billion, one hundred twelve million, five hundred sixty-two thousand, two hundred forty-three".