129008673 has 16 divisors (see below), whose sum is σ = 195787200. Its totient is φ = 83907360.

The previous prime is 129008657. The next prime is 129008713. The reversal of 129008673 is 376800921.

It is not a de Polignac number, because 129008673 - 2⁴ = 129008657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129008623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57163 + ... + 59376.

It is an arithmetic number, because the mean of its divisors is an integer number (12236700).

Almost surely, 2^129008673 is an apocalyptic number.

It is an amenable number.

129008673 is a deficient number, since it is larger than the sum of its proper divisors (66778527).

129008673 is a wasteful number, since it uses less digits than its factorization.

129008673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116589 (or 116583 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 129008673 is about 11358.1984927188. The cubic root of 129008673 is about 505.2887581653.

The spelling of 129008673 in words is "one hundred twenty-nine million, eight thousand, six hundred seventy-three".