1344360509 has 2 divisors, whose sum is σ = 1344360510. Its totient is φ = 1344360508.

The previous prime is 1344360491. The next prime is 1344360533. The reversal of 1344360509 is 9050634431.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1220104900 + 124255609 = 34930^2 + 11147^2 .

It is an emirp because it is prime and its reverse (9050634431) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1344360509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1344360559) 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, 672180254 + 672180255.

It is an arithmetic number, because the mean of its divisors is an integer number (672180255).

Almost surely, 2^1344360509 is an apocalyptic number.

It is an amenable number.

1344360509 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344360509 is an equidigital number, since it uses as much as digits as its factorization.

1344360509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 1344360509 is about 36665.5220745594. The cubic root of 1344360509 is about 1103.6683340523.

The spelling of 1344360509 in words is "one billion, three hundred forty-four million, three hundred sixty thousand, five hundred nine".