12231169 has 2 divisors, whose sum is σ = 12231170. Its totient is φ = 12231168.

The previous prime is 12231157. The next prime is 12231203. The reversal of 12231169 is 96113221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12166144 + 65025 = 3488^2 + 255^2 .

It is a cyclic number.

It is not a de Polignac number, because 12231169 - 2⁹ = 12230657 is a prime.

It is a super-2 number, since 2×12231169² = 299202990213122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12232169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6115584 + 6115585.

It is an arithmetic number, because the mean of its divisors is an integer number (6115585).

Almost surely, 2^12231169 is an apocalyptic number.

It is an amenable number.

12231169 is a deficient number, since it is larger than the sum of its proper divisors (1).

12231169 is an equidigital number, since it uses as much as digits as its factorization.

12231169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 25.

The square root of 12231169 is about 3497.3088225091. The cubic root of 12231169 is about 230.4036327653.

The spelling of 12231169 in words is "twelve million, two hundred thirty-one thousand, one hundred sixty-nine".