199914593 has 2 divisors, whose sum is σ = 199914594. Its totient is φ = 199914592.

The previous prime is 199914581. The next prime is 199914607. The reversal of 199914593 is 395419991.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137077264 + 62837329 = 11708^2 + 7927^2 .

It is a cyclic number.

It is not a de Polignac number, because 199914593 - 2¹⁸ = 199652449 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (199914503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99957296 + 99957297.

It is an arithmetic number, because the mean of its divisors is an integer number (99957297).

Almost surely, 2^199914593 is an apocalyptic number.

It is an amenable number.

199914593 is a deficient number, since it is larger than the sum of its proper divisors (1).

199914593 is an equidigital number, since it uses as much as digits as its factorization.

199914593 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 393660, while the sum is 50.

The square root of 199914593 is about 14139.1157078510. The cubic root of 199914593 is about 584.7202919294.

The spelling of 199914593 in words is "one hundred ninety-nine million, nine hundred fourteen thousand, five hundred ninety-three".