129276291133 has 8 divisors (see below), whose sum is σ = 142613274240. Its totient is φ = 116203406880.

The previous prime is 129276291077. The next prime is 129276291173. The reversal of 129276291133 is 331192672921.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-129276291133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129276291173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66023685 + ... + 66025642.

It is an arithmetic number, because the mean of its divisors is an integer number (17826659280).

Almost surely, 2^129276291133 is an apocalyptic number.

It is an amenable number.

129276291133 is a deficient number, since it is larger than the sum of its proper divisors (13336983107).

129276291133 is a wasteful number, since it uses less digits than its factorization.

129276291133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132049427.

The product of its digits is 244944, while the sum is 46.

The spelling of 129276291133 in words is "one hundred twenty-nine billion, two hundred seventy-six million, two hundred ninety-one thousand, one hundred thirty-three".