1246946563 has 2 divisors, whose sum is σ = 1246946564. Its totient is φ = 1246946562.

The previous prime is 1246946539. The next prime is 1246946641. The reversal of 1246946563 is 3656496421.

It is a weak prime.

It is an emirp because it is prime and its reverse (3656496421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1246946563 - 2²⁹ = 710075651 is a prime.

It is not a weakly prime, because it can be changed into another prime (1246946963) 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, 623473281 + 623473282.

It is an arithmetic number, because the mean of its divisors is an integer number (623473282).

Almost surely, 2^1246946563 is an apocalyptic number.

1246946563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1246946563 is an equidigital number, since it uses as much as digits as its factorization.

1246946563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 46.

The square root of 1246946563 is about 35312.1305361203. The cubic root of 1246946563 is about 1076.3395057674.

The spelling of 1246946563 in words is "one billion, two hundred forty-six million, nine hundred forty-six thousand, five hundred sixty-three".