1344558913 has 2 divisors, whose sum is σ = 1344558914. Its totient is φ = 1344558912.

The previous prime is 1344558911. The next prime is 1344558923. The reversal of 1344558913 is 3198554431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1248067584 + 96491329 = 35328^2 + 9823^2 .

It is a cyclic number.

It is not a de Polignac number, because 1344558913 - 2¹ = 1344558911 is a prime.

Together with 1344558911, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1344558913.

It is not a weakly prime, because it can be changed into another prime (1344558911) 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, 672279456 + 672279457.

It is an arithmetic number, because the mean of its divisors is an integer number (672279457).

Almost surely, 2^1344558913 is an apocalyptic number.

It is an amenable number.

1344558913 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344558913 is an equidigital number, since it uses as much as digits as its factorization.

1344558913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 43.

The square root of 1344558913 is about 36668.2275682913. The cubic root of 1344558913 is about 1103.7226254023.

The spelling of 1344558913 in words is "one billion, three hundred forty-four million, five hundred fifty-eight thousand, nine hundred thirteen".