1302401563 has 2 divisors, whose sum is σ = 1302401564. Its totient is φ = 1302401562.

The previous prime is 1302401491. The next prime is 1302401567. The reversal of 1302401563 is 3651042031.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1302401563 is a prime.

It is not a weakly prime, because it can be changed into another prime (1302401567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651200781 + 651200782.

It is an arithmetic number, because the mean of its divisors is an integer number (651200782).

Almost surely, 2^1302401563 is an apocalyptic number.

1302401563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1302401563 is an equidigital number, since it uses as much as digits as its factorization.

1302401563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1302401563 is about 36088.8010745716. The cubic root of 1302401563 is about 1092.0645334245.

Adding to 1302401563 its reverse (3651042031), we get a palindrome (4953443594).

The spelling of 1302401563 in words is "one billion, three hundred two million, four hundred one thousand, five hundred sixty-three".