2164143 has 4 divisors (see below), whose sum is σ = 2885528. Its totient is φ = 1442760.

The previous prime is 2164121. The next prime is 2164171. The reversal of 2164143 is 3414612.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2164143 - 2⁵ = 2164111 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2164193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360688 + ... + 360693.

It is an arithmetic number, because the mean of its divisors is an integer number (721382).

2^2164143 is an apocalyptic number.

2164143 is a deficient number, since it is larger than the sum of its proper divisors (721385).

2164143 is an equidigital number, since it uses as much as digits as its factorization.

2164143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721384.

The product of its digits is 576, while the sum is 21.

The square root of 2164143 is about 1471.1026476762. The cubic root of 2164143 is about 129.3486751265.

Adding to 2164143 its reverse (3414612), we get a palindrome (5578755).

The spelling of 2164143 in words is "two million, one hundred sixty-four thousand, one hundred forty-three".