12127863 has 16 divisors (see below), whose sum is σ = 17942400. Its totient is φ = 7224480.

The previous prime is 12127861. The next prime is 12127873. The reversal of 12127863 is 36872121.

It is not a de Polignac number, because 12127863 - 2¹ = 12127861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12127863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12127861) 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, 1168 + ... + 5061.

It is an arithmetic number, because the mean of its divisors is an integer number (1121400).

Almost surely, 2^12127863 is an apocalyptic number.

12127863 is a deficient number, since it is larger than the sum of its proper divisors (5814537).

12127863 is a wasteful number, since it uses less digits than its factorization.

12127863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6302.

The product of its digits is 4032, while the sum is 30.

The square root of 12127863 is about 3482.5081478727. The cubic root of 12127863 is about 229.7531251511.

Adding to 12127863 its reverse (36872121), we get a palindrome (48999984).

The spelling of 12127863 in words is "twelve million, one hundred twenty-seven thousand, eight hundred sixty-three".