4189001 has 2 divisors, whose sum is σ = 4189002. Its totient is φ = 4189000.

The previous prime is 4188997. The next prime is 4189019. The reversal of 4189001 is 1009814.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2496400 + 1692601 = 1580^2 + 1301^2 .

It is a cyclic number.

It is not a de Polignac number, because 4189001 - 2² = 4188997 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (4189091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2094500 + 2094501.

It is an arithmetic number, because the mean of its divisors is an integer number (2094501).

Almost surely, 2^4189001 is an apocalyptic number.

It is an amenable number.

4189001 is a deficient number, since it is larger than the sum of its proper divisors (1).

4189001 is an equidigital number, since it uses as much as digits as its factorization.

4189001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 4189001 is about 2046.7049127805. The cubic root of 4189001 is about 161.2018994003.

The spelling of 4189001 in words is "four million, one hundred eighty-nine thousand, one".