2106171 has 12 divisors (see below), whose sum is σ = 3140800. Its totient is φ = 1358640.

The previous prime is 2106149. The next prime is 2106173. The reversal of 2106171 is 1716012.

It is not a de Polignac number, because 2106171 - 2⁶ = 2106107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2106173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3496 + ... + 4053.

2^2106171 is an apocalyptic number.

2106171 is a deficient number, since it is larger than the sum of its proper divisors (1034629).

2106171 is a wasteful number, since it uses less digits than its factorization.

2106171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7586 (or 7583 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 2106171 is about 1451.2653099968. The cubic root of 2106171 is about 128.1832296098.

The spelling of 2106171 in words is "two million, one hundred six thousand, one hundred seventy-one".