1444243012397 has 2 divisors, whose sum is σ = 1444243012398. Its totient is φ = 1444243012396.

The previous prime is 1444243012393. The next prime is 1444243012469. The reversal of 1444243012397 is 7932103424441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 938933868196 + 505309144201 = 968986^2 + 710851^2 .

It is a cyclic number.

It is not a de Polignac number, because 1444243012397 - 2² = 1444243012393 is a prime.

It is a super-2 number, since 2×1444243012397² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1444243012393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722121506198 + 722121506199.

It is an arithmetic number, because the mean of its divisors is an integer number (722121506199).

Almost surely, 2^{1444243012397} is an apocalyptic number.

It is an amenable number.

1444243012397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444243012397 is an equidigital number, since it uses as much as digits as its factorization.

1444243012397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 44.

The spelling of 1444243012397 in words is "one trillion, four hundred forty-four billion, two hundred forty-three million, twelve thousand, three hundred ninety-seven".