1305028805453 has 2 divisors, whose sum is σ = 1305028805454. Its totient is φ = 1305028805452.

The previous prime is 1305028805449. The next prime is 1305028805603. The reversal of 1305028805453 is 3545088205031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1295196496489 + 9832308964 = 1138067^2 + 99158^2 .

It is an emirp because it is prime and its reverse (3545088205031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1305028805453 - 2² = 1305028805449 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1305028805653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652514402726 + 652514402727.

It is an arithmetic number, because the mean of its divisors is an integer number (652514402727).

Almost surely, 2^{1305028805453} is an apocalyptic number.

It is an amenable number.

1305028805453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1305028805453 is an equidigital number, since it uses as much as digits as its factorization.

1305028805453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576000, while the sum is 44.

The spelling of 1305028805453 in words is "one trillion, three hundred five billion, twenty-eight million, eight hundred five thousand, four hundred fifty-three".