2001171 has 8 divisors (see below), whose sum is σ = 2674944. Its totient is φ = 1330760.

The previous prime is 2001163. The next prime is 2001179. The reversal of 2001171 is 1711002.

It is an interprime number because it is at equal distance from previous prime (2001163) and next prime (2001179).

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

It is a cyclic number.

It is not a de Polignac number, because 2001171 - 2³ = 2001163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2001179) 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, 1426 + ... + 2456.

It is an arithmetic number, because the mean of its divisors is an integer number (334368).

2^2001171 is an apocalyptic number.

2001171 is a deficient number, since it is larger than the sum of its proper divisors (673773).

2001171 is a wasteful number, since it uses less digits than its factorization.

2001171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681.

The product of its (nonzero) digits is 14, while the sum is 12.

The square root of 2001171 is about 1414.6275128104. The cubic root of 2001171 is about 126.0166896512.

Adding to 2001171 its reverse (1711002), we get a palindrome (3712173).

The spelling of 2001171 in words is "two million, one thousand, one hundred seventy-one".