199849241 has 2 divisors, whose sum is σ = 199849242. Its totient is φ = 199849240.

The previous prime is 199849213. The next prime is 199849249. The reversal of 199849241 is 142948991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 193321216 + 6528025 = 13904^2 + 2555^2 .

It is a cyclic number.

It is not a de Polignac number, because 199849241 - 2¹⁰ = 199848217 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (199849249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99924620 + 99924621.

It is an arithmetic number, because the mean of its divisors is an integer number (99924621).

Almost surely, 2^199849241 is an apocalyptic number.

It is an amenable number.

199849241 is a deficient number, since it is larger than the sum of its proper divisors (1).

199849241 is an equidigital number, since it uses as much as digits as its factorization.

199849241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 47.

The square root of 199849241 is about 14136.8044833336. The cubic root of 199849241 is about 584.6565700427.

The spelling of 199849241 in words is "one hundred ninety-nine million, eight hundred forty-nine thousand, two hundred forty-one".