135112138 has 32 divisors (see below), whose sum is σ = 238267008. Its totient is φ = 56256000.

The previous prime is 135112129. The next prime is 135112139. The reversal of 135112138 is 831211531.

It is not an unprimeable number, because it can be changed into a prime (135112139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229881 + ... + 230467.

It is an arithmetic number, because the mean of its divisors is an integer number (7445844).

Almost surely, 2^135112138 is an apocalyptic number.

135112138 is a deficient number, since it is larger than the sum of its proper divisors (103154870).

135112138 is a wasteful number, since it uses less digits than its factorization.

135112138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038.

The product of its digits is 720, while the sum is 25.

The square root of 135112138 is about 11623.7746881123. The cubic root of 135112138 is about 513.1347841614.

Adding to 135112138 its reverse (831211531), we get a palindrome (966323669).

The spelling of 135112138 in words is "one hundred thirty-five million, one hundred twelve thousand, one hundred thirty-eight".