199247029 has 2 divisors, whose sum is σ = 199247030. Its totient is φ = 199247028.

The previous prime is 199247017. The next prime is 199247033. The reversal of 199247029 is 920742991.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 169052004 + 30195025 = 13002^2 + 5495^2 .

It is a cyclic number.

It is not a de Polignac number, because 199247029 - 2⁵ = 199246997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199247329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99623514 + 99623515.

It is an arithmetic number, because the mean of its divisors is an integer number (99623515).

Almost surely, 2^199247029 is an apocalyptic number.

It is an amenable number.

199247029 is a deficient number, since it is larger than the sum of its proper divisors (1).

199247029 is an equidigital number, since it uses as much as digits as its factorization.

199247029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 199247029 is about 14115.4889748815. The cubic root of 199247029 is about 584.0687245153.

The spelling of 199247029 in words is "one hundred ninety-nine million, two hundred forty-seven thousand, twenty-nine".