199228473 has 6 divisors (see below), whose sum is σ = 287774474. Its totient is φ = 132818976.

The previous prime is 199228439. The next prime is 199228483. The reversal of 199228473 is 374822991.

It can be written as a sum of positive squares in only one way, i.e., 162103824 + 37124649 = 12732^2 + 6093^2 .

It is not a de Polignac number, because 199228473 - 2⁶ = 199228409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199228483) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11068240 + ... + 11068257.

Almost surely, 2^199228473 is an apocalyptic number.

It is an amenable number.

199228473 is a deficient number, since it is larger than the sum of its proper divisors (88546001).

199228473 is a wasteful number, since it uses less digits than its factorization.

199228473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22136503 (or 22136500 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 199228473 is about 14114.8316674341. The cubic root of 199228473 is about 584.0505923910.

The spelling of 199228473 in words is "one hundred ninety-nine million, two hundred twenty-eight thousand, four hundred seventy-three".