1363917563 has 2 divisors, whose sum is σ = 1363917564. Its totient is φ = 1363917562.

The previous prime is 1363917553. The next prime is 1363917631. The reversal of 1363917563 is 3657193631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1363917563 - 2⁴ = 1363917547 is a prime.

It is a super-2 number, since 2×1363917563² = 3720542237319717938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1363917523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 681958781 + 681958782.

It is an arithmetic number, because the mean of its divisors is an integer number (681958782).

Almost surely, 2^1363917563 is an apocalyptic number.

1363917563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1363917563 is an equidigital number, since it uses as much as digits as its factorization.

1363917563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 306180, while the sum is 44.

The square root of 1363917563 is about 36931.2545549159. The cubic root of 1363917563 is about 1108.9944530941.

The spelling of 1363917563 in words is "one billion, three hundred sixty-three million, nine hundred seventeen thousand, five hundred sixty-three".