1344518309 has 2 divisors, whose sum is σ = 1344518310. Its totient is φ = 1344518308.

The previous prime is 1344518293. The next prime is 1344518317. The reversal of 1344518309 is 9038154431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1235733409 + 108784900 = 35153^2 + 10430^2 .

It is a cyclic number.

It is not a de Polignac number, because 1344518309 - 2⁴ = 1344518293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1344518339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672259154 + 672259155.

It is an arithmetic number, because the mean of its divisors is an integer number (672259155).

Almost surely, 2^1344518309 is an apocalyptic number.

It is an amenable number.

1344518309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344518309 is an equidigital number, since it uses as much as digits as its factorization.

1344518309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 1344518309 is about 36667.6738967718. The cubic root of 1344518309 is about 1103.7115149422.

The spelling of 1344518309 in words is "one billion, three hundred forty-four million, five hundred eighteen thousand, three hundred nine".