2186001 has 8 divisors (see below), whose sum is σ = 3238560. Its totient is φ = 1457316.

The previous prime is 2185999. The next prime is 2186003. The reversal of 2186001 is 1006812.

It is an interprime number because it is at equal distance from previous prime (2185999) and next prime (2186003).

It is not a de Polignac number, because 2186001 - 2¹ = 2185999 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2186003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40455 + ... + 40508.

It is an arithmetic number, because the mean of its divisors is an integer number (404820).

2^2186001 is an apocalyptic number.

It is an amenable number.

2186001 is a deficient number, since it is larger than the sum of its proper divisors (1052559).

2186001 is an equidigital number, since it uses as much as digits as its factorization.

2186001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80972 (or 80966 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 2186001 is about 1478.5131044397. The cubic root of 2186001 is about 129.7826941568.

The spelling of 2186001 in words is "two million, one hundred eighty-six thousand, one".