199899341 has 2 divisors, whose sum is σ = 199899342. Its totient is φ = 199899340.

The previous prime is 199899307. The next prime is 199899347. The reversal of 199899341 is 143998991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198528100 + 1371241 = 14090^2 + 1171^2 .

It is an emirp because it is prime and its reverse (143998991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199899341 - 2¹⁰ = 199898317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199899347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99949670 + 99949671.

It is an arithmetic number, because the mean of its divisors is an integer number (99949671).

Almost surely, 2^199899341 is an apocalyptic number.

It is an amenable number.

199899341 is a deficient number, since it is larger than the sum of its proper divisors (1).

199899341 is an equidigital number, since it uses as much as digits as its factorization.

199899341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 629856, while the sum is 53.

The square root of 199899341 is about 14138.5763427581. The cubic root of 199899341 is about 584.7054216114.

The spelling of 199899341 in words is "one hundred ninety-nine million, eight hundred ninety-nine thousand, three hundred forty-one".