11994001 has 2 divisors, whose sum is σ = 11994002. Its totient is φ = 11994000.

The previous prime is 11993987. The next prime is 11994011. The reversal of 11994001 is 10049911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11662225 + 331776 = 3415^2 + 576^2 .

It is an emirp because it is prime and its reverse (10049911) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11994001 is a prime.

It is not a weakly prime, because it can be changed into another prime (11994011) 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 as a sum of consecutive naturals, namely, 5997000 + 5997001.

It is an arithmetic number, because the mean of its divisors is an integer number (5997001).

Almost surely, 2^11994001 is an apocalyptic number.

11994001 is the 2000-th hex number.

It is an amenable number.

11994001 is a deficient number, since it is larger than the sum of its proper divisors (1).

11994001 is an equidigital number, since it uses as much as digits as its factorization.

11994001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 25.

The square root of 11994001 is about 3463.2356258274. The cubic root of 11994001 is about 228.9046913696.

The spelling of 11994001 in words is "eleven million, nine hundred ninety-four thousand, one".