219230904841 has 9 divisors (see below), whose sum is σ = 237398636181. Its totient is φ = 202361370432.

The previous prime is 219230904829. The next prime is 219230904857. The reversal of 219230904841 is 148409032912.

The square root of 219230904841 is 468221.

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 28977912441 + 190252992400 = 170229^2 + 436180^2 .

It is not a de Polignac number, because 219230904841 - 2³³ = 210640970249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (219230904341) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6068865 + ... + 6104881.

Almost surely, 2^219230904841 is an apocalyptic number.

219230904841 is the 468221-st square number.

219230904841 is the 234111-st centered octagonal number.

It is an amenable number.

219230904841 is a deficient number, since it is larger than the sum of its proper divisors (18167731340).

219230904841 is an frugal number, since it uses more digits than its factorization.

219230904841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72060 (or 36030 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 219230904841 in words is "two hundred nineteen billion, two hundred thirty million, nine hundred four thousand, eight hundred forty-one".