1344317209 has 2 divisors, whose sum is σ = 1344317210. Its totient is φ = 1344317208.

The previous prime is 1344317147. The next prime is 1344317231. The reversal of 1344317209 is 9027134431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1272491584 + 71825625 = 35672^2 + 8475^2 .

It is a cyclic number.

It is not a de Polignac number, because 1344317209 - 2¹⁹ = 1343792921 is a prime.

It is not a weakly prime, because it can be changed into another prime (1344317239) 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, 672158604 + 672158605.

It is an arithmetic number, because the mean of its divisors is an integer number (672158605).

Almost surely, 2^1344317209 is an apocalyptic number.

It is an amenable number.

1344317209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344317209 is an equidigital number, since it uses as much as digits as its factorization.

1344317209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 1344317209 is about 36664.9315968270. The cubic root of 1344317209 is about 1103.6564847129.

The spelling of 1344317209 in words is "one billion, three hundred forty-four million, three hundred seventeen thousand, two hundred nine".