2163459169 has 9 divisors (see below), whose sum is σ = 2183788089. Its totient is φ = 2143319040.

The previous prime is 2163459163. The next prime is 2163459203. The reversal of 2163459169 is 9619543612.

The square root of 2163459169 is 46513.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 93025 + 2163366144 = 305^2 + 46512^2 .

It is not a de Polignac number, because 2163459169 - 2⁷ = 2163459041 is a prime.

It is a super-2 number, since 2×2163459169² = 9361111151860341122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2163459163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 8976889 + ... + 8977129.

It is an arithmetic number, because the mean of its divisors is an integer number (242643121).

Almost surely, 2^2163459169 is an apocalyptic number.

2163459169 is the 46513-rd square number.

2163459169 is the 23257-th centered octagonal number.

It is an amenable number.

2163459169 is a deficient number, since it is larger than the sum of its proper divisors (20328920).

2163459169 is an frugal number, since it uses more digits than its factorization.

2163459169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868 (or 434 counting only the distinct ones).

The product of its digits is 349920, while the sum is 46.

The cubic root of 2163459169 is about 1293.3504972495.

The spelling of 2163459169 in words is "two billion, one hundred sixty-three million, four hundred fifty-nine thousand, one hundred sixty-nine".