12481563 has 4 divisors (see below), whose sum is σ = 16642088. Its totient is φ = 8321040.

The previous prime is 12481559. The next prime is 12481619. The reversal of 12481563 is 36518421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36518421 = 3 ⋅12172807.

It is not a de Polignac number, because 12481563 - 2² = 12481559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12481563.

It is not an unprimeable number, because it can be changed into a prime (12481523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2080258 + ... + 2080263.

It is an arithmetic number, because the mean of its divisors is an integer number (4160522).

Almost surely, 2^12481563 is an apocalyptic number.

12481563 is a deficient number, since it is larger than the sum of its proper divisors (4160525).

12481563 is an equidigital number, since it uses as much as digits as its factorization.

12481563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4160524.

The product of its digits is 5760, while the sum is 30.

The square root of 12481563 is about 3532.9255582307. The cubic root of 12481563 is about 231.9652829046.

Adding to 12481563 its reverse (36518421), we get a palindrome (48999984).

The spelling of 12481563 in words is "twelve million, four hundred eighty-one thousand, five hundred sixty-three".