1244214313 has 2 divisors, whose sum is σ = 1244214314. Its totient is φ = 1244214312.

The previous prime is 1244214299. The next prime is 1244214319. The reversal of 1244214313 is 3134124421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1171487529 + 72726784 = 34227^2 + 8528^2 .

It is an emirp because it is prime and its reverse (3134124421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1244214313 - 2¹⁷ = 1244083241 is a prime.

It is not a weakly prime, because it can be changed into another prime (1244214319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622107156 + 622107157.

It is an arithmetic number, because the mean of its divisors is an integer number (622107157).

Almost surely, 2^1244214313 is an apocalyptic number.

It is an amenable number.

1244214313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244214313 is an equidigital number, since it uses as much as digits as its factorization.

1244214313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 25.

The square root of 1244214313 is about 35273.4221900853. The cubic root of 1244214313 is about 1075.5527895720.

Adding to 1244214313 its reverse (3134124421), we get a palindrome (4378338734).

The spelling of 1244214313 in words is "one billion, two hundred forty-four million, two hundred fourteen thousand, three hundred thirteen".