12001994 has 8 divisors (see below), whose sum is σ = 18298308. Its totient is φ = 5902560.

The previous prime is 12001993. The next prime is 12001999. The reversal of 12001994 is 49910021.

12001994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 10144225 + 1857769 = 3185^2 + 1363^2 .

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

It is not an unprimeable number, because it can be changed into a prime (12001993) 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, 49067 + ... + 49310.

Almost surely, 2^12001994 is an apocalyptic number.

12001994 is a deficient number, since it is larger than the sum of its proper divisors (6296314).

12001994 is an equidigital number, since it uses as much as digits as its factorization.

12001994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98440.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 12001994 is about 3464.3894122919. The cubic root of 12001994 is about 228.9555286983.

The spelling of 12001994 in words is "twelve million, one thousand, nine hundred ninety-four".