12812449 has 16 divisors (see below), whose sum is σ = 14620032. Its totient is φ = 11138688.

The previous prime is 12812419. The next prime is 12812473. The reversal of 12812449 is 94421821.

12812449 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12812449 - 2⁵ = 12812417 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12812449.

It is not an unprimeable number, because it can be changed into a prime (12812419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21534 + ... + 22120.

It is an arithmetic number, because the mean of its divisors is an integer number (913752).

Almost surely, 2^12812449 is an apocalyptic number.

It is an amenable number.

12812449 is a deficient number, since it is larger than the sum of its proper divisors (1807583).

12812449 is a wasteful number, since it uses less digits than its factorization.

12812449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696.

The product of its digits is 4608, while the sum is 31.

The square root of 12812449 is about 3579.4481418230. The cubic root of 12812449 is about 233.9972301033.

The spelling of 12812449 in words is "twelve million, eight hundred twelve thousand, four hundred forty-nine".