199093459 has 2 divisors, whose sum is σ = 199093460. Its totient is φ = 199093458.

The previous prime is 199093441. The next prime is 199093471. The reversal of 199093459 is 954390991.

It is a strong prime.

It is an emirp because it is prime and its reverse (954390991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199093459 - 2¹¹ = 199091411 is a prime.

It is not a weakly prime, because it can be changed into another prime (199093259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99546729 + 99546730.

It is an arithmetic number, because the mean of its divisors is an integer number (99546730).

Almost surely, 2^199093459 is an apocalyptic number.

199093459 is a deficient number, since it is larger than the sum of its proper divisors (1).

199093459 is an equidigital number, since it uses as much as digits as its factorization.

199093459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 393660, while the sum is 49.

The square root of 199093459 is about 14110.0481572530. The cubic root of 199093459 is about 583.9186286123.

The spelling of 199093459 in words is "one hundred ninety-nine million, ninety-three thousand, four hundred fifty-nine".