2160218189 has 2 divisors, whose sum is σ = 2160218190. Its totient is φ = 2160218188.

The previous prime is 2160218161. The next prime is 2160218251. The reversal of 2160218189 is 9818120612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2069340100 + 90878089 = 45490^2 + 9533^2 .

It is a cyclic number.

It is not a de Polignac number, because 2160218189 - 2⁸ = 2160217933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2160238189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1080109094 + 1080109095.

It is an arithmetic number, because the mean of its divisors is an integer number (1080109095).

Almost surely, 2^2160218189 is an apocalyptic number.

It is an amenable number.

2160218189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2160218189 is an equidigital number, since it uses as much as digits as its factorization.

2160218189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 38.

The square root of 2160218189 is about 46478.1474351119. The cubic root of 2160218189 is about 1292.7043379195.

The spelling of 2160218189 in words is "two billion, one hundred sixty million, two hundred eighteen thousand, one hundred eighty-nine".