2143166 has 8 divisors (see below), whose sum is σ = 3221904. Its totient is φ = 1069200.

The previous prime is 2143157. The next prime is 2143177. The reversal of 2143166 is 6613412.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311 + ... + 2093.

It is an arithmetic number, because the mean of its divisors is an integer number (402738).

2^2143166 is an apocalyptic number.

2143166 is a deficient number, since it is larger than the sum of its proper divisors (1078738).

2143166 is a wasteful number, since it uses less digits than its factorization.

2143166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2386.

The product of its digits is 864, while the sum is 23.

The square root of 2143166 is about 1463.9556004196. The cubic root of 2143166 is about 128.9293926848.

Adding to 2143166 its reverse (6613412), we get a palindrome (8756578).

The spelling of 2143166 in words is "two million, one hundred forty-three thousand, one hundred sixty-six".