135171437427 has 12 divisors (see below), whose sum is σ = 210266680624. Its totient is φ = 83182422960.

The previous prime is 135171437413. The next prime is 135171437431. The reversal of 135171437427 is 724734171531.

135171437427 is a `hidden beast` number, since 1 + 3 + 5 + 171 + 437 + 42 + 7 = 666.

It is not a de Polignac number, because 135171437427 - 2¹⁴ = 135171421043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135171437227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 577655599 + ... + 577655832.

Almost surely, 2^135171437427 is an apocalyptic number.

135171437427 is a deficient number, since it is larger than the sum of its proper divisors (75095243197).

135171437427 is a wasteful number, since it uses less digits than its factorization.

135171437427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155311450 (or 1155311447 counting only the distinct ones).

The product of its digits is 493920, while the sum is 45.

The spelling of 135171437427 in words is "one hundred thirty-five billion, one hundred seventy-one million, four hundred thirty-seven thousand, four hundred twenty-seven".