2160808129 has 4 divisors (see below), whose sum is σ = 2161117120. Its totient is φ = 2160499140.

The previous prime is 2160808087. The next prime is 2160808147. The reversal of 2160808129 is 9218080612.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2160808129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2160808829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143757 + ... + 158074.

It is an arithmetic number, because the mean of its divisors is an integer number (540279280).

Almost surely, 2^2160808129 is an apocalyptic number.

It is an amenable number.

2160808129 is a deficient number, since it is larger than the sum of its proper divisors (308991).

2160808129 is an equidigital number, since it uses as much as digits as its factorization.

2160808129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308990.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 2160808129 is about 46484.4934252273. The cubic root of 2160808129 is about 1292.8220032846.

The spelling of 2160808129 in words is "two billion, one hundred sixty million, eight hundred eight thousand, one hundred twenty-nine".