1344552217 has 2 divisors, whose sum is σ = 1344552218. Its totient is φ = 1344552216.

The previous prime is 1344552199. The next prime is 1344552241. The reversal of 1344552217 is 7122554431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 736633881 + 607918336 = 27141^2 + 24656^2 .

It is an emirp because it is prime and its reverse (7122554431) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1344552217 is a prime.

It is not a weakly prime, because it can be changed into another prime (1344552257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672276108 + 672276109.

It is an arithmetic number, because the mean of its divisors is an integer number (672276109).

Almost surely, 2^1344552217 is an apocalyptic number.

It is an amenable number.

1344552217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344552217 is an equidigital number, since it uses as much as digits as its factorization.

1344552217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33600, while the sum is 34.

The square root of 1344552217 is about 36668.1362629736. The cubic root of 1344552217 is about 1103.7207931933.

The spelling of 1344552217 in words is "one billion, three hundred forty-four million, five hundred fifty-two thousand, two hundred seventeen".