1444540142243 has 12 divisors (see below), whose sum is σ = 1656835121424. Its totient is φ = 1256121860400.

The previous prime is 1444540142237. The next prime is 1444540142263. The reversal of 1444540142243 is 3422410454441.

It is not a de Polignac number, because 1444540142243 - 2⁶ = 1444540142179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1444540142197 and 1444540142206.

It is not an unprimeable number, because it can be changed into a prime (1444540142263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 259526528 + ... + 259532093.

It is an arithmetic number, because the mean of its divisors is an integer number (138069593452).

Almost surely, 2^{1444540142243} is an apocalyptic number.

1444540142243 is a deficient number, since it is larger than the sum of its proper divisors (212294979181).

1444540142243 is a wasteful number, since it uses less digits than its factorization.

1444540142243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519058666 (or 519058655 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 38.

Adding to 1444540142243 its reverse (3422410454441), we get a palindrome (4866950596684).

The spelling of 1444540142243 in words is "one trillion, four hundred forty-four billion, five hundred forty million, one hundred forty-two thousand, two hundred forty-three".