135136126431 has 12 divisors (see below), whose sum is σ = 195233546352. Its totient is φ = 90073711296.

The previous prime is 135136126429. The next prime is 135136126483. The reversal of 135136126431 is 134621631531.

135136126431 is a `hidden beast` number, since 1 + 3 + 5 + 1 + 3 + 6 + 1 + 2 + 643 + 1 = 666.

It is not a de Polignac number, because 135136126431 - 2¹ = 135136126429 is a prime.

It is a super-2 number, since 2×135136126431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135136126231) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1369651 + ... + 1464996.

It is an arithmetic number, because the mean of its divisors is an integer number (16269462196).

Almost surely, 2^135136126431 is an apocalyptic number.

135136126431 is a deficient number, since it is larger than the sum of its proper divisors (60097419921).

135136126431 is a wasteful number, since it uses less digits than its factorization.

135136126431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2839950 (or 2839947 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

Adding to 135136126431 its reverse (134621631531), we get a palindrome (269757757962).

The spelling of 135136126431 in words is "one hundred thirty-five billion, one hundred thirty-six million, one hundred twenty-six thousand, four hundred thirty-one".