12772166 has 8 divisors (see below), whose sum is σ = 20899944. Its totient is φ = 5805520.

The previous prime is 12772159. The next prime is 12772169. The reversal of 12772166 is 66127721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12772169) 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 in 3 ways as a sum of consecutive naturals, for example, 290255 + ... + 290298.

It is an arithmetic number, because the mean of its divisors is an integer number (2612493).

Almost surely, 2^12772166 is an apocalyptic number.

12772166 is a deficient number, since it is larger than the sum of its proper divisors (8127778).

12772166 is a wasteful number, since it uses less digits than its factorization.

12772166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580566.

The product of its digits is 7056, while the sum is 32.

The square root of 12772166 is about 3573.8167272539. The cubic root of 12772166 is about 233.7517395278.

Adding to 12772166 its reverse (66127721), we get a palindrome (78899887).

It can be divided in two parts, 1277 and 2166, that added together give a palindrome (3443).

The spelling of 12772166 in words is "twelve million, seven hundred seventy-two thousand, one hundred sixty-six".