129161163 has 16 divisors (see below), whose sum is σ = 175871360. Its totient is φ = 84297024.

The previous prime is 129161119. The next prime is 129161167. The reversal of 129161163 is 361161921.

It is not a de Polignac number, because 129161163 - 2¹⁰ = 129160139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 129161163.

It is not an unprimeable number, because it can be changed into a prime (129161167) 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, 28320 + ... + 32562.

It is an arithmetic number, because the mean of its divisors is an integer number (10991960).

Almost surely, 2^129161163 is an apocalyptic number.

129161163 is a deficient number, since it is larger than the sum of its proper divisors (46710197).

129161163 is a wasteful number, since it uses less digits than its factorization.

129161163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4458.

The product of its digits is 1944, while the sum is 30.

The square root of 129161163 is about 11364.9092825240. The cubic root of 129161163 is about 505.4877658294.

The spelling of 129161163 in words is "one hundred twenty-nine million, one hundred sixty-one thousand, one hundred sixty-three".