1440104453 has 2 divisors, whose sum is σ = 1440104454. Its totient is φ = 1440104452.

The previous prime is 1440104429. The next prime is 1440104579. The reversal of 1440104453 is 3544010441.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1436637409 + 3467044 = 37903^2 + 1862^2 .

It is an emirp because it is prime and its reverse (3544010441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1440104453 - 2¹⁰ = 1440103429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1440104423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720052226 + 720052227.

It is an arithmetic number, because the mean of its divisors is an integer number (720052227).

Almost surely, 2^1440104453 is an apocalyptic number.

It is an amenable number.

1440104453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440104453 is an equidigital number, since it uses as much as digits as its factorization.

1440104453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1440104453 is about 37948.7081861820. The cubic root of 1440104453 is about 1129.2705378961.

Adding to 1440104453 its reverse (3544010441), we get a palindrome (4984114894).

The spelling of 1440104453 in words is "one billion, four hundred forty million, one hundred four thousand, four hundred fifty-three".