129884473 has 8 divisors (see below), whose sum is σ = 135688896. Its totient is φ = 124093200.

The previous prime is 129884413. The next prime is 129884477. The reversal of 129884473 is 374488921.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129884473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129884477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20718 + ... + 26248.

It is an arithmetic number, because the mean of its divisors is an integer number (16961112).

Almost surely, 2^129884473 is an apocalyptic number.

It is an amenable number.

129884473 is a deficient number, since it is larger than the sum of its proper divisors (5804423).

129884473 is a wasteful number, since it uses less digits than its factorization.

129884473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6575.

The product of its digits is 387072, while the sum is 46.

The square root of 129884473 is about 11396.6869308585. The cubic root of 129884473 is about 506.4295968387.

The spelling of 129884473 in words is "one hundred twenty-nine million, eight hundred eighty-four thousand, four hundred seventy-three".