12966549 has 8 divisors (see below), whose sum is σ = 18040512. Its totient is φ = 8268480.

The previous prime is 12966497. The next prime is 12966557. The reversal of 12966549 is 94566921.

It is a happy number.

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

It is not a de Polignac number, because 12966549 - 2⁸ = 12966293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12966549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12966559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93892 + ... + 94029.

It is an arithmetic number, because the mean of its divisors is an integer number (2255064).

Almost surely, 2^12966549 is an apocalyptic number.

It is an amenable number.

12966549 is a deficient number, since it is larger than the sum of its proper divisors (5073963).

12966549 is a wasteful number, since it uses less digits than its factorization.

12966549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187947.

The product of its digits is 116640, while the sum is 42.

The square root of 12966549 is about 3600.9094684538. The cubic root of 12966549 is about 234.9316173448.

The spelling of 12966549 in words is "twelve million, nine hundred sixty-six thousand, five hundred forty-nine".