1344666241 has 2 divisors, whose sum is σ = 1344666242. Its totient is φ = 1344666240.

The previous prime is 1344666223. The next prime is 1344666311. The reversal of 1344666241 is 1426664431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 723610000 + 621056241 = 26900^2 + 24921^2 .

It is an emirp because it is prime and its reverse (1426664431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1344666241 - 2¹⁵ = 1344633473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1344666241.

It is not a weakly prime, because it can be changed into another prime (1344666041) 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, 672333120 + 672333121.

It is an arithmetic number, because the mean of its divisors is an integer number (672333121).

Almost surely, 2^1344666241 is an apocalyptic number.

It is an amenable number.

1344666241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344666241 is an equidigital number, since it uses as much as digits as its factorization.

1344666241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82944, while the sum is 37.

The square root of 1344666241 is about 36669.6910404219. The cubic root of 1344666241 is about 1103.7519924532.

The spelling of 1344666241 in words is "one billion, three hundred forty-four million, six hundred sixty-six thousand, two hundred forty-one".