1244340199 has 2 divisors, whose sum is σ = 1244340200. Its totient is φ = 1244340198.

The previous prime is 1244340187. The next prime is 1244340221. The reversal of 1244340199 is 9910434421.

It is a weak prime.

It is an emirp because it is prime and its reverse (9910434421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1244340199 - 2⁹ = 1244339687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1244340299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622170099 + 622170100.

It is an arithmetic number, because the mean of its divisors is an integer number (622170100).

Almost surely, 2^1244340199 is an apocalyptic number.

1244340199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244340199 is an equidigital number, since it uses as much as digits as its factorization.

1244340199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 1244340199 is about 35275.2065762909. The cubic root of 1244340199 is about 1075.5890621206.

The spelling of 1244340199 in words is "one billion, two hundred forty-four million, three hundred forty thousand, one hundred ninety-nine".