12109846 has 8 divisors (see below), whose sum is σ = 20759760. Its totient is φ = 5189928.

The previous prime is 12109843. The next prime is 12109847. The reversal of 12109846 is 64890121.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12109843) 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, 432481 + ... + 432508.

It is an arithmetic number, because the mean of its divisors is an integer number (2594970).

Almost surely, 2^12109846 is an apocalyptic number.

12109846 is a deficient number, since it is larger than the sum of its proper divisors (8649914).

12109846 is an equidigital number, since it uses as much as digits as its factorization.

12109846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864998.

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

The square root of 12109846 is about 3479.9204013885. The cubic root of 12109846 is about 229.6392959851.

Adding to 12109846 its reverse (64890121), we get a palindrome (76999967).

The spelling of 12109846 in words is "twelve million, one hundred nine thousand, eight hundred forty-six".