12726249 has 8 divisors (see below), whose sum is σ = 17054400. Its totient is φ = 8441136.

The previous prime is 12726223. The next prime is 12726269. The reversal of 12726249 is 94262721.

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

It is not a de Polignac number, because 12726249 - 2¹⁹ = 12201961 is a prime.

It is a super-3 number, since 3×12726249³ (a number of 22 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (12726269) 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, 10062 + ... + 11255.

It is an arithmetic number, because the mean of its divisors is an integer number (2131800).

Almost surely, 2^12726249 is an apocalyptic number.

It is an amenable number.

12726249 is a deficient number, since it is larger than the sum of its proper divisors (4328151).

12726249 is a wasteful number, since it uses less digits than its factorization.

12726249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21519.

The product of its digits is 12096, while the sum is 33.

The square root of 12726249 is about 3567.3868587525. The cubic root of 12726249 is about 233.4712841845.

The spelling of 12726249 in words is "twelve million, seven hundred twenty-six thousand, two hundred forty-nine".