1009199 has 2 divisors, whose sum is σ = 1009200. Its totient is φ = 1009198.

The previous prime is 1009193. The next prime is 1009201. The reversal of 1009199 is 9919001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1009199 is a prime.

Together with 1009201, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1009193) 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, 504599 + 504600.

It is an arithmetic number, because the mean of its divisors is an integer number (504600).

2^1009199 is an apocalyptic number.

1009199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1009199 is an equidigital number, since it uses as much as digits as its factorization.

1009199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 729, while the sum is 29.

The square root of 1009199 is about 1004.5889706741. The cubic root of 1009199 is about 100.3056978692.

The spelling of 1009199 in words is "one million, nine thousand, one hundred ninety-nine".