129434163 has 8 divisors (see below), whose sum is σ = 178530000. Its totient is φ = 83313888.

The previous prime is 129434161. The next prime is 129434167. The reversal of 129434163 is 361434921.

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

It is not a de Polignac number, because 129434163 - 2¹ = 129434161 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (129434161) 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, 743788 + ... + 743961.

It is an arithmetic number, because the mean of its divisors is an integer number (22316250).

Almost surely, 2^129434163 is an apocalyptic number.

129434163 is a deficient number, since it is larger than the sum of its proper divisors (49095837).

129434163 is a wasteful number, since it uses less digits than its factorization.

129434163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487781.

The product of its digits is 15552, while the sum is 33.

The square root of 129434163 is about 11376.9135972811. The cubic root of 129434163 is about 505.8436546658.

The spelling of 129434163 in words is "one hundred twenty-nine million, four hundred thirty-four thousand, one hundred sixty-three".