2066143 has 4 divisors (see below), whose sum is σ = 2073880. Its totient is φ = 2058408.

The previous prime is 2066137. The next prime is 2066149. The reversal of 2066143 is 3416602.

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

It is an interprime number because it is at equal distance from previous prime (2066137) and next prime (2066149).

It is a cyclic number.

It is not a de Polignac number, because 2066143 - 2⁵ = 2066111 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 (2066149) 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, 3453 + ... + 4006.

It is an arithmetic number, because the mean of its divisors is an integer number (518470).

2^2066143 is an apocalyptic number.

2066143 is a deficient number, since it is larger than the sum of its proper divisors (7737).

2066143 is an equidigital number, since it uses as much as digits as its factorization.

2066143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7736.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2066143 is about 1437.4084318662. The cubic root of 2066143 is about 127.3659850356.

It can be divided in two parts, 2066 and 143, that added together give a square (2209 = 47²).

The spelling of 2066143 in words is "two million, sixty-six thousand, one hundred forty-three".