12856413 has 8 divisors (see below), whose sum is σ = 17694976. Its totient is φ = 8294400.

The previous prime is 12856399. The next prime is 12856423. The reversal of 12856413 is 31465821.

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

It is not a de Polignac number, because 12856413 - 2⁹ = 12855901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12856423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69028 + ... + 69213.

It is an arithmetic number, because the mean of its divisors is an integer number (2211872).

Almost surely, 2^12856413 is an apocalyptic number.

It is an amenable number.

12856413 is a deficient number, since it is larger than the sum of its proper divisors (4838563).

12856413 is a wasteful number, since it uses less digits than its factorization.

12856413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138275.

The product of its digits is 5760, while the sum is 30.

The square root of 12856413 is about 3585.5840528427. The cubic root of 12856413 is about 234.2645667118.

The spelling of 12856413 in words is "twelve million, eight hundred fifty-six thousand, four hundred thirteen".