12812641 has 8 divisors (see below), whose sum is σ = 13305600. Its totient is φ = 12324720.

The previous prime is 12812629. The next prime is 12812647. The reversal of 12812641 is 14621821.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12812641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12812647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4395 + ... + 6703.

It is an arithmetic number, because the mean of its divisors is an integer number (1663200).

Almost surely, 2^12812641 is an apocalyptic number.

It is an amenable number.

12812641 is a deficient number, since it is larger than the sum of its proper divisors (492959).

12812641 is a wasteful number, since it uses less digits than its factorization.

12812641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2519.

The product of its digits is 768, while the sum is 25.

The square root of 12812641 is about 3579.4749614992. The cubic root of 12812641 is about 233.9983989468.

It can be divided in two parts, 128 and 12641, that added together give a square (12769 = 113²).

The spelling of 12812641 in words is "twelve million, eight hundred twelve thousand, six hundred forty-one".