12810409 has 8 divisors (see below), whose sum is σ = 13547520. Its totient is φ = 12093600.

The previous prime is 12810407. The next prime is 12810433. The reversal of 12810409 is 90401821.

It is a happy number.

12810409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12810409 - 2¹ = 12810407 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12810407) 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, 3769 + ... + 6310.

It is an arithmetic number, because the mean of its divisors is an integer number (1693440).

Almost surely, 2^12810409 is an apocalyptic number.

It is an amenable number.

12810409 is a deficient number, since it is larger than the sum of its proper divisors (737111).

12810409 is a wasteful number, since it uses less digits than its factorization.

12810409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10151.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 12810409 is about 3579.1631703514. The cubic root of 12810409 is about 233.9848104198.

The spelling of 12810409 in words is "twelve million, eight hundred ten thousand, four hundred nine".