12772169 has 2 divisors, whose sum is σ = 12772170. Its totient is φ = 12772168.

The previous prime is 12772159. The next prime is 12772171. The reversal of 12772169 is 96127721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11648569 + 1123600 = 3413^2 + 1060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12772169 is a prime.

It is a super-2 number, since 2×12772169² = 326256601929122, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 12772171, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (12772139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6386084 + 6386085.

It is an arithmetic number, because the mean of its divisors is an integer number (6386085).

Almost surely, 2^12772169 is an apocalyptic number.

It is an amenable number.

12772169 is a deficient number, since it is larger than the sum of its proper divisors (1).

12772169 is an equidigital number, since it uses as much as digits as its factorization.

12772169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10584, while the sum is 35.

The square root of 12772169 is about 3573.8171469732. The cubic root of 12772169 is about 233.7517578294.

The spelling of 12772169 in words is "twelve million, seven hundred seventy-two thousand, one hundred sixty-nine".