1440045424261 has 2 divisors, whose sum is σ = 1440045424262. Its totient is φ = 1440045424260.

The previous prime is 1440045424199. The next prime is 1440045424291. The reversal of 1440045424261 is 1624245400441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 968393764900 + 471651659361 = 984070^2 + 686769^2 .

It is a cyclic number.

It is not a de Polignac number, because 1440045424261 - 2⁷ = 1440045424133 is a prime.

It is a super-2 number, since 2×1440045424261² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1440045424261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1440045424291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720022712130 + 720022712131.

It is an arithmetic number, because the mean of its divisors is an integer number (720022712131).

Almost surely, 2^{1440045424261} is an apocalyptic number.

It is an amenable number.

1440045424261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440045424261 is an equidigital number, since it uses as much as digits as its factorization.

1440045424261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122880, while the sum is 37.

The spelling of 1440045424261 in words is "one trillion, four hundred forty billion, forty-five million, four hundred twenty-four thousand, two hundred sixty-one".