12012946 has 16 divisors (see below), whose sum is σ = 20513088. Its totient is φ = 5222800.

The previous prime is 12012941. The next prime is 12012967. The reversal of 12012946 is 64921021.

It is a self number, because there is not a number n which added to its sum of digits gives 12012946.

It is not an unprimeable number, because it can be changed into a prime (12012941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11365 + ... + 12376.

It is an arithmetic number, because the mean of its divisors is an integer number (1282068).

Almost surely, 2^12012946 is an apocalyptic number.

12012946 is a deficient number, since it is larger than the sum of its proper divisors (8500142).

12012946 is a wasteful number, since it uses less digits than its factorization.

12012946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23777.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 12012946 is about 3465.9697055802. The cubic root of 12012946 is about 229.0251493136.

Adding to 12012946 its reverse (64921021), we get a palindrome (76933967).

The spelling of 12012946 in words is "twelve million, twelve thousand, nine hundred forty-six".