1244113219 has 2 divisors, whose sum is σ = 1244113220. Its totient is φ = 1244113218.

The previous prime is 1244113201. The next prime is 1244113223. The reversal of 1244113219 is 9123114421.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1244113219 is a prime.

It is a super-2 number, since 2×1244113219² = 3095635403381083922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1244113249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622056609 + 622056610.

It is an arithmetic number, because the mean of its divisors is an integer number (622056610).

Almost surely, 2^1244113219 is an apocalyptic number.

1244113219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244113219 is an equidigital number, since it uses as much as digits as its factorization.

1244113219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 28.

The square root of 1244113219 is about 35271.9891557026. The cubic root of 1244113219 is about 1075.5236587710.

The spelling of 1244113219 in words is "one billion, two hundred forty-four million, one hundred thirteen thousand, two hundred nineteen".