135115443 has 12 divisors (see below), whose sum is σ = 195613080. Its totient is φ = 89870976.

The previous prime is 135115423. The next prime is 135115447. The reversal of 135115443 is 344511531.

It is a happy number.

It is not a de Polignac number, because 135115443 - 2⁵ = 135115411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135115447) 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 in 11 ways as a sum of consecutive naturals, for example, 12958 + ... + 20931.

It is an arithmetic number, because the mean of its divisors is an integer number (16301090).

Almost surely, 2^135115443 is an apocalyptic number.

135115443 is a deficient number, since it is larger than the sum of its proper divisors (60497637).

135115443 is a wasteful number, since it uses less digits than its factorization.

135115443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34338 (or 34335 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 135115443 is about 11623.9168527653. The cubic root of 135115443 is about 513.1389680851.

Adding to 135115443 its reverse (344511531), we get a palindrome (479626974).

The spelling of 135115443 in words is "one hundred thirty-five million, one hundred fifteen thousand, four hundred forty-three".