12316646 has 8 divisors (see below), whose sum is σ = 18925704. Its totient is φ = 6008080.

The previous prime is 12316643. The next prime is 12316691. The reversal of 12316646 is 64661321.

It is a happy number.

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

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12316643) 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, 75020 + ... + 75183.

It is an arithmetic number, because the mean of its divisors is an integer number (2365713).

Almost surely, 2^12316646 is an apocalyptic number.

12316646 is a deficient number, since it is larger than the sum of its proper divisors (6609058).

12316646 is a wasteful number, since it uses less digits than its factorization.

12316646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150246.

The product of its digits is 5184, while the sum is 29.

The square root of 12316646 is about 3509.5079427179. The cubic root of 12316646 is about 230.9391092796.

Adding to 12316646 its reverse (64661321), we get a palindrome (76977967).

The spelling of 12316646 in words is "twelve million, three hundred sixteen thousand, six hundred forty-six".