199230673 has 2 divisors, whose sum is σ = 199230674. Its totient is φ = 199230672.

The previous prime is 199230671. The next prime is 199230677. The reversal of 199230673 is 376032991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160579584 + 38651089 = 12672^2 + 6217^2 .

It is a cyclic number.

It is not a de Polignac number, because 199230673 - 2¹ = 199230671 is a prime.

It is a super-2 number, since 2×199230673² = 79385722128065858, which contains 22 as substring.

Together with 199230671, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (199230671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99615336 + 99615337.

It is an arithmetic number, because the mean of its divisors is an integer number (99615337).

Almost surely, 2^199230673 is an apocalyptic number.

It is an amenable number.

199230673 is a deficient number, since it is larger than the sum of its proper divisors (1).

199230673 is an equidigital number, since it uses as much as digits as its factorization.

199230673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 199230673 is about 14114.9095994271. The cubic root of 199230673 is about 584.0527421951.

The spelling of 199230673 in words is "one hundred ninety-nine million, two hundred thirty thousand, six hundred seventy-three".