12745563 has 16 divisors (see below), whose sum is σ = 18216576. Its totient is φ = 7898240.

The previous prime is 12745549. The next prime is 12745567. The reversal of 12745563 is 36554721.

It is a cyclic number.

It is not a de Polignac number, because 12745563 - 2¹² = 12741467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12745567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2728 + ... + 5738.

It is an arithmetic number, because the mean of its divisors is an integer number (1138536).

Almost surely, 2^12745563 is an apocalyptic number.

12745563 is a deficient number, since it is larger than the sum of its proper divisors (5471013).

12745563 is a wasteful number, since it uses less digits than its factorization.

12745563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3114.

The product of its digits is 25200, while the sum is 33.

The square root of 12745563 is about 3570.0928559353. The cubic root of 12745563 is about 233.5893337670.

The spelling of 12745563 in words is "twelve million, seven hundred forty-five thousand, five hundred sixty-three".