199241569 has 2 divisors, whose sum is σ = 199241570. Its totient is φ = 199241568.

The previous prime is 199241531. The next prime is 199241573. The reversal of 199241569 is 965142991.

It is a happy number.

199241569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 199148544 + 93025 = 14112^2 + 305^2 .

It is a cyclic number.

It is not a de Polignac number, because 199241569 - 2⁹ = 199241057 is a prime.

It is a super-4 number, since 4×199241569⁴ (a number of 34 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (199241069) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99620784 + 99620785.

It is an arithmetic number, because the mean of its divisors is an integer number (99620785).

Almost surely, 2^199241569 is an apocalyptic number.

It is an amenable number.

199241569 is a deficient number, since it is larger than the sum of its proper divisors (1).

199241569 is an equidigital number, since it uses as much as digits as its factorization.

199241569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 174960, while the sum is 46.

The square root of 199241569 is about 14115.2955689918. The cubic root of 199241569 is about 584.0633893553.

The spelling of 199241569 in words is "one hundred ninety-nine million, two hundred forty-one thousand, five hundred sixty-nine".