199473269 has 2 divisors, whose sum is σ = 199473270. Its totient is φ = 199473268.

The previous prime is 199473247. The next prime is 199473289. The reversal of 199473269 is 962374991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 189392644 + 10080625 = 13762^2 + 3175^2 .

It is an emirp because it is prime and its reverse (962374991) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-199473269 is a prime.

It is a super-2 number, since 2×199473269² = 79579170091092722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199473289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99736634 + 99736635.

It is an arithmetic number, because the mean of its divisors is an integer number (99736635).

Almost surely, 2^199473269 is an apocalyptic number.

It is an amenable number.

199473269 is a deficient number, since it is larger than the sum of its proper divisors (1).

199473269 is an equidigital number, since it uses as much as digits as its factorization.

199473269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 734832, while the sum is 50.

The square root of 199473269 is about 14123.5005929833. The cubic root of 199473269 is about 584.2897060219.

The spelling of 199473269 in words is "one hundred ninety-nine million, four hundred seventy-three thousand, two hundred sixty-nine".