12001964 has 12 divisors (see below), whose sum is σ = 22619184. Its totient is φ = 5539344.

The previous prime is 12001963. The next prime is 12001981. The reversal of 12001964 is 46910021.

It is a happy number.

12001964 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12001961) 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, 115352 + ... + 115455.

It is an arithmetic number, because the mean of its divisors is an integer number (1884932).

Almost surely, 2^12001964 is an apocalyptic number.

It is an amenable number.

12001964 is a deficient number, since it is larger than the sum of its proper divisors (10617220).

12001964 is a wasteful number, since it uses less digits than its factorization.

12001964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230824 (or 230822 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 12001964 is about 3464.3850825219. The cubic root of 12001964 is about 228.9553379336.

Adding to 12001964 its reverse (46910021), we get a palindrome (58911985).

The spelling of 12001964 in words is "twelve million, one thousand, nine hundred sixty-four".