12816146 has 24 divisors (see below), whose sum is σ = 23543280. Its totient is φ = 5202792.

The previous prime is 12816143. The next prime is 12816163. The reversal of 12816146 is 64161821.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12816143) 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 11 ways as a sum of consecutive naturals, for example, 1580 + ... + 5303.

It is an arithmetic number, because the mean of its divisors is an integer number (980970).

Almost surely, 2^12816146 is an apocalyptic number.

12816146 is a deficient number, since it is larger than the sum of its proper divisors (10727134).

12816146 is a wasteful number, since it uses less digits than its factorization.

12816146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6918 (or 6911 counting only the distinct ones).

The product of its digits is 2304, while the sum is 29.

The square root of 12816146 is about 3579.9645249639. The cubic root of 12816146 is about 234.0197343768.

Adding to 12816146 its reverse (64161821), we get a palindrome (76977967).

The spelling of 12816146 in words is "twelve million, eight hundred sixteen thousand, one hundred forty-six".