12539563 has 8 divisors (see below), whose sum is σ = 13522320. Its totient is φ = 11589120.

The previous prime is 12539561. The next prime is 12539567. The reversal of 12539563 is 36593521.

It is a happy number.

12539563 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 12539563 - 2¹ = 12539561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12539561) 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, 7270 + ... + 8827.

It is an arithmetic number, because the mean of its divisors is an integer number (1690290).

Almost surely, 2^12539563 is an apocalyptic number.

12539563 is a deficient number, since it is larger than the sum of its proper divisors (982757).

12539563 is a wasteful number, since it uses less digits than its factorization.

12539563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16157.

The product of its digits is 24300, while the sum is 34.

The square root of 12539563 is about 3541.1245389000. The cubic root of 12539563 is about 232.3240307225.

It can be divided in two parts, 1253 and 9563, that added together give a square (10816 = 104²).

The spelling of 12539563 in words is "twelve million, five hundred thirty-nine thousand, five hundred sixty-three".