1344412217 has 2 divisors, whose sum is σ = 1344412218. Its totient is φ = 1344412216.

The previous prime is 1344412211. The next prime is 1344412229. The reversal of 1344412217 is 7122144431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 805197376 + 539214841 = 28376^2 + 23221^2 .

It is an emirp because it is prime and its reverse (7122144431) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1344412217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1344412217.

It is not a weakly prime, because it can be changed into another prime (1344412211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672206108 + 672206109.

It is an arithmetic number, because the mean of its divisors is an integer number (672206109).

Almost surely, 2^1344412217 is an apocalyptic number.

It is an amenable number.

1344412217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344412217 is an equidigital number, since it uses as much as digits as its factorization.

1344412217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 29.

The square root of 1344412217 is about 36666.2271988815. The cubic root of 1344412217 is about 1103.6824839648.

Adding to 1344412217 its reverse (7122144431), we get a palindrome (8466556648).

The spelling of 1344412217 in words is "one billion, three hundred forty-four million, four hundred twelve thousand, two hundred seventeen".