12166471 has 12 divisors (see below), whose sum is σ = 12895960. Its totient is φ = 11476080.

The previous prime is 12166459. The next prime is 12166481. The reversal of 12166471 is 17466121.

It is not a de Polignac number, because 12166471 - 2⁵ = 12166439 is a prime.

It is a super-3 number, since 3×12166471³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12166421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57556 + ... + 57766.

Almost surely, 2^12166471 is an apocalyptic number.

12166471 is a deficient number, since it is larger than the sum of its proper divisors (729489).

12166471 is a wasteful number, since it uses less digits than its factorization.

12166471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366 (or 343 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The square root of 12166471 is about 3488.0468746850. The cubic root of 12166471 is about 229.9966666184.

The spelling of 12166471 in words is "twelve million, one hundred sixty-six thousand, four hundred seventy-one".