2117271 has 12 divisors (see below), whose sum is σ = 3053288. Its totient is φ = 1297344.

The previous prime is 2117239. The next prime is 2117273. The reversal of 2117271 is 1727112.

It is a happy number.

It is not a de Polignac number, because 2117271 - 2⁵ = 2117239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2117273) 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, 8971 + ... + 9203.

2^2117271 is an apocalyptic number.

2117271 is a deficient number, since it is larger than the sum of its proper divisors (936017).

2117271 is an equidigital number, since it uses as much as digits as its factorization.

2117271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482 (or 249 counting only the distinct ones).

The product of its digits is 196, while the sum is 21.

The square root of 2117271 is about 1455.0845336268. The cubic root of 2117271 is about 128.4080200928.

The spelling of 2117271 in words is "two million, one hundred seventeen thousand, two hundred seventy-one".