1344722641 has 2 divisors, whose sum is σ = 1344722642. Its totient is φ = 1344722640.

The previous prime is 1344722611. The next prime is 1344722647. The reversal of 1344722641 is 1462274431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 680114241 + 664608400 = 26079^2 + 25780^2 .

It is a cyclic number.

It is not a de Polignac number, because 1344722641 - 2⁹ = 1344722129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1344722597 and 1344722606.

It is not a weakly prime, because it can be changed into another prime (1344722647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672361320 + 672361321.

It is an arithmetic number, because the mean of its divisors is an integer number (672361321).

Almost surely, 2^1344722641 is an apocalyptic number.

It is an amenable number.

1344722641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1344722641 is an equidigital number, since it uses as much as digits as its factorization.

1344722641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 34.

The square root of 1344722641 is about 36670.4600598356. The cubic root of 1344722641 is about 1103.7674239757.

The spelling of 1344722641 in words is "one billion, three hundred forty-four million, seven hundred twenty-two thousand, six hundred forty-one".