12730563 has 6 divisors (see below), whose sum is σ = 18388604. Its totient is φ = 8487036.

The previous prime is 12730519. The next prime is 12730567. The reversal of 12730563 is 36503721.

It is a happy number.

12730563 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12730563 - 2⁸ = 12730307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12730567) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 707245 + ... + 707262.

Almost surely, 2^12730563 is an apocalyptic number.

12730563 is a deficient number, since it is larger than the sum of its proper divisors (5658041).

12730563 is a wasteful number, since it uses less digits than its factorization.

12730563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414513 (or 1414510 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The square root of 12730563 is about 3567.9914517835. The cubic root of 12730563 is about 233.4976622460.

The spelling of 12730563 in words is "twelve million, seven hundred thirty thousand, five hundred sixty-three".