2182001 has 8 divisors (see below), whose sum is σ = 2373480. Its totient is φ = 1997568.

The previous prime is 2181973. The next prime is 2182007. The reversal of 2182001 is 1002812.

It can be written as a sum of positive squares in 4 ways, for example, as 429025 + 1752976 = 655^2 + 1324^2 .

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

It is not a de Polignac number, because 2182001 - 2⁶ = 2181937 is a prime.

It is a super-2 number, since 2×2182001² = 9522256728002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2182007) 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, 1106 + ... + 2363.

It is an arithmetic number, because the mean of its divisors is an integer number (296685).

2^2182001 is an apocalyptic number.

It is an amenable number.

2182001 is a deficient number, since it is larger than the sum of its proper divisors (191479).

2182001 is a wasteful number, since it uses less digits than its factorization.

2182001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3523.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 2182001 is about 1477.1597747028. The cubic root of 2182001 is about 129.7034859377.

Adding to 2182001 its reverse (1002812), we get a palindrome (3184813).

The spelling of 2182001 in words is "two million, one hundred eighty-two thousand, one".