12846109 has 4 divisors (see below), whose sum is σ = 13522240. Its totient is φ = 12169980.

The previous prime is 12846083. The next prime is 12846131. The reversal of 12846109 is 90164821.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12846109 - 2⁹ = 12845597 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12846199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 338037 + ... + 338074.

It is an arithmetic number, because the mean of its divisors is an integer number (3380560).

Almost surely, 2^12846109 is an apocalyptic number.

12846109 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12846109 is a deficient number, since it is larger than the sum of its proper divisors (676131).

12846109 is an equidigital number, since it uses as much as digits as its factorization.

12846109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676130.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 12846109 is about 3584.1468998912. The cubic root of 12846109 is about 234.2019648217.

The spelling of 12846109 in words is "twelve million, eight hundred forty-six thousand, one hundred nine".