12603563 has 8 divisors (see below), whose sum is σ = 15030528. Its totient is φ = 10333224.

The previous prime is 12603551. The next prime is 12603583. The reversal of 12603563 is 36530621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12603563 - 2⁶ = 12603499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12603533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38981 + ... + 39302.

It is an arithmetic number, because the mean of its divisors is an integer number (1878816).

Almost surely, 2^12603563 is an apocalyptic number.

12603563 is a deficient number, since it is larger than the sum of its proper divisors (2426965).

12603563 is an equidigital number, since it uses as much as digits as its factorization.

12603563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78313.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 12603563 is about 3550.1497151529. The cubic root of 12603563 is about 232.7186088943.

The spelling of 12603563 in words is "twelve million, six hundred three thousand, five hundred sixty-three".