13201563 has 16 divisors (see below), whose sum is σ = 18867456. Its totient is φ = 8189280.

The previous prime is 13201541. The next prime is 13201577. The reversal of 13201563 is 36510231.

13201563 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13201563 - 2⁶ = 13201499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13201763) 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, 33 + ... + 5138.

It is an arithmetic number, because the mean of its divisors is an integer number (1179216).

Almost surely, 2^13201563 is an apocalyptic number.

13201563 is a deficient number, since it is larger than the sum of its proper divisors (5665893).

13201563 is a wasteful number, since it uses less digits than its factorization.

13201563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5234.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 13201563 is about 3633.3955193455. The cubic root of 13201563 is about 236.3424777232.

Adding to 13201563 its reverse (36510231), we get a palindrome (49711794).

The spelling of 13201563 in words is "thirteen million, two hundred one thousand, five hundred sixty-three".