1440314021057 has 2 divisors, whose sum is σ = 1440314021058. Its totient is φ = 1440314021056.

The previous prime is 1440314021053. The next prime is 1440314021059. The reversal of 1440314021057 is 7501204130441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1413837524401 + 26476496656 = 1189049^2 + 162716^2 .

It is a cyclic number.

It is not a de Polignac number, because 1440314021057 - 2² = 1440314021053 is a prime.

Together with 1440314021059, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1440314021051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720157010528 + 720157010529.

It is an arithmetic number, because the mean of its divisors is an integer number (720157010529).

Almost surely, 2^{1440314021057} is an apocalyptic number.

It is an amenable number.

1440314021057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440314021057 is an equidigital number, since it uses as much as digits as its factorization.

1440314021057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 32.

Adding to 1440314021057 its reverse (7501204130441), we get a palindrome (8941518151498).

The spelling of 1440314021057 in words is "one trillion, four hundred forty billion, three hundred fourteen million, twenty-one thousand, fifty-seven".