135131126 has 32 divisors (see below), whose sum is σ = 226981440. Its totient is φ = 59907456.

The previous prime is 135131119. The next prime is 135131137. The reversal of 135131126 is 621131531.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208535 + ... + 209181.

It is an arithmetic number, because the mean of its divisors is an integer number (7093170).

Almost surely, 2^135131126 is an apocalyptic number.

135131126 is a deficient number, since it is larger than the sum of its proper divisors (91850314).

135131126 is a wasteful number, since it uses less digits than its factorization.

135131126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968.

The product of its digits is 540, while the sum is 23.

The square root of 135131126 is about 11624.5914336806. The cubic root of 135131126 is about 513.1588208542.

Adding to 135131126 its reverse (621131531), we get a palindrome (756262657).

The spelling of 135131126 in words is "one hundred thirty-five million, one hundred thirty-one thousand, one hundred twenty-six".