12027881 has 2 divisors, whose sum is σ = 12027882. Its totient is φ = 12027880.

The previous prime is 12027863. The next prime is 12027887. The reversal of 12027881 is 18872021.

12027881 is nontrivially palindromic in base 5.

12027881 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10784656 + 1243225 = 3284^2 + 1115^2 .

It is a cyclic number.

It is not a de Polignac number, because 12027881 - 2¹⁰ = 12026857 is a prime.

It is a super-2 number, since 2×12027881² = 289339842700322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12027887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6013940 + 6013941.

It is an arithmetic number, because the mean of its divisors is an integer number (6013941).

Almost surely, 2^12027881 is an apocalyptic number.

It is an amenable number.

12027881 is a deficient number, since it is larger than the sum of its proper divisors (1).

12027881 is an equidigital number, since it uses as much as digits as its factorization.

12027881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 12027881 is about 3468.1235560458. The cubic root of 12027881 is about 229.1200212427.

The spelling of 12027881 in words is "twelve million, twenty-seven thousand, eight hundred eighty-one".