2159171 has 8 divisors (see below), whose sum is σ = 2575104. Its totient is φ = 1770120.

The previous prime is 2159147. The next prime is 2159177. The reversal of 2159171 is 1719512.

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 2159171 - 2¹⁰ = 2158147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2159171.

It is not an unprimeable number, because it can be changed into a prime (2159177) 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, 6545 + ... + 6866.

It is an arithmetic number, because the mean of its divisors is an integer number (321888).

2^2159171 is an apocalyptic number.

2159171 is a deficient number, since it is larger than the sum of its proper divisors (415933).

2159171 is a wasteful number, since it uses less digits than its factorization.

2159171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13441.

The product of its digits is 630, while the sum is 26.

The square root of 2159171 is about 1469.4117870767. The cubic root of 2159171 is about 129.2495420047.

The spelling of 2159171 in words is "two million, one hundred fifty-nine thousand, one hundred seventy-one".