2143983 has 8 divisors (see below), whose sum is σ = 2866096. Its totient is φ = 1425600.

The previous prime is 2143969. The next prime is 2143993. The reversal of 2143983 is 3893412.

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

It is not a de Polignac number, because 2143983 - 2²¹ = 46831 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2143983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143943) 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 7 ways as a sum of consecutive naturals, for example, 963 + ... + 2283.

It is an arithmetic number, because the mean of its divisors is an integer number (358262).

2^2143983 is an apocalyptic number.

2143983 is a deficient number, since it is larger than the sum of its proper divisors (722113).

2143983 is a wasteful number, since it uses less digits than its factorization.

2143983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1865.

The product of its digits is 5184, while the sum is 30.

The square root of 2143983 is about 1464.2346123487. The cubic root of 2143983 is about 128.9457737354.

The spelling of 2143983 in words is "two million, one hundred forty-three thousand, nine hundred eighty-three".