129832161 has 8 divisors (see below), whose sum is σ = 173886720. Its totient is φ = 86166192.

The previous prime is 129832151. The next prime is 129832207. The reversal of 129832161 is 161238921.

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-129832161 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 (129832121) 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, 96366 + ... + 97703.

It is an arithmetic number, because the mean of its divisors is an integer number (21735840).

Almost surely, 2^129832161 is an apocalyptic number.

It is an amenable number.

129832161 is a deficient number, since it is larger than the sum of its proper divisors (44054559).

129832161 is a wasteful number, since it uses less digits than its factorization.

129832161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194295.

The product of its digits is 5184, while the sum is 33.

The square root of 129832161 is about 11394.3916467708. The cubic root of 129832161 is about 506.3615981988.

The spelling of 129832161 in words is "one hundred twenty-nine million, eight hundred thirty-two thousand, one hundred sixty-one".