12027171 has 16 divisors (see below), whose sum is σ = 18179840. Its totient is φ = 7011360.

The previous prime is 12027151. The next prime is 12027179. The reversal of 12027171 is 17172021.

It is a happy number.

12027171 is digitally balanced in base 2 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 12027171 - 2⁵ = 12027139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12027179) 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, 7375 + ... + 8856.

It is an arithmetic number, because the mean of its divisors is an integer number (1136240).

Almost surely, 2^12027171 is an apocalyptic number.

12027171 is a deficient number, since it is larger than the sum of its proper divisors (6152669).

12027171 is a wasteful number, since it uses less digits than its factorization.

12027171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16266.

The product of its (nonzero) digits is 196, while the sum is 21.

The square root of 12027171 is about 3468.0211937069. The cubic root of 12027171 is about 229.1155128727.

Adding to 12027171 its reverse (17172021), we get a palindrome (29199192).

The spelling of 12027171 in words is "twelve million, twenty-seven thousand, one hundred seventy-one".