135171225126 has 48 divisors (see below), whose sum is σ = 340382764800. Its totient is φ = 37965765744.

The previous prime is 135171225121. The next prime is 135171225143. The reversal of 135171225126 is 621522171531.

135171225126 is a `hidden beast` number, since 1 + 3 + 5 + 17 + 122 + 512 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135171225121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9083986 + ... + 9098853.

It is an arithmetic number, because the mean of its divisors is an integer number (7091307600).

Almost surely, 2^135171225126 is an apocalyptic number.

135171225126 is an abundant number, since it is smaller than the sum of its proper divisors (205211539674).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135171225126 is a wasteful number, since it uses less digits than its factorization.

135171225126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18182913 (or 18182910 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

Adding to 135171225126 its reverse (621522171531), we get a palindrome (756693396657).

The spelling of 135171225126 in words is "one hundred thirty-five billion, one hundred seventy-one million, two hundred twenty-five thousand, one hundred twenty-six".