134866872129 has 12 divisors (see below), whose sum is σ = 197656132688. Its totient is φ = 81737498040.

The previous prime is 134866872109. The next prime is 134866872137. The reversal of 134866872129 is 921278668431.

It is a happy number.

It is not a de Polignac number, because 134866872129 - 2⁵ = 134866872097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134866872109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185766679 + ... + 185767404.

Almost surely, 2^134866872129 is an apocalyptic number.

It is an amenable number.

134866872129 is a deficient number, since it is larger than the sum of its proper divisors (62789260559).

134866872129 is a wasteful number, since it uses less digits than its factorization.

134866872129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371534108 (or 371534097 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 57.

The spelling of 134866872129 in words is "one hundred thirty-four billion, eight hundred sixty-six million, eight hundred seventy-two thousand, one hundred twenty-nine".