12975563 has 2 divisors, whose sum is σ = 12975564. Its totient is φ = 12975562.

The previous prime is 12975559. The next prime is 12975623. The reversal of 12975563 is 36557921.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12975563 - 2² = 12975559 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (12975503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6487781 + 6487782.

It is an arithmetic number, because the mean of its divisors is an integer number (6487782).

Almost surely, 2^12975563 is an apocalyptic number.

12975563 is a deficient number, since it is larger than the sum of its proper divisors (1).

12975563 is an equidigital number, since it uses as much as digits as its factorization.

12975563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 38.

The square root of 12975563 is about 3602.1608792501. The cubic root of 12975563 is about 234.9860441388.

The spelling of 12975563 in words is "twelve million, nine hundred seventy-five thousand, five hundred sixty-three".