1298844563 has 2 divisors, whose sum is σ = 1298844564. Its totient is φ = 1298844562.

The previous prime is 1298844527. The next prime is 1298844571. The reversal of 1298844563 is 3654488921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1298844563 - 2¹⁸ = 1298582419 is a prime.

It is not a weakly prime, because it can be changed into another prime (1298844593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649422281 + 649422282.

It is an arithmetic number, because the mean of its divisors is an integer number (649422282).

Almost surely, 2^1298844563 is an apocalyptic number.

1298844563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1298844563 is an equidigital number, since it uses as much as digits as its factorization.

1298844563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1658880, while the sum is 50.

The square root of 1298844563 is about 36039.4861644835. The cubic root of 1298844563 is about 1091.0694447265.

The spelling of 1298844563 in words is "one billion, two hundred ninety-eight million, eight hundred forty-four thousand, five hundred sixty-three".