2205143 has 4 divisors (see below), whose sum is σ = 2208528. Its totient is φ = 2201760.

The previous prime is 2205139. The next prime is 2205149. The reversal of 2205143 is 3415022.

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

It is a cyclic number.

It is not a de Polignac number, because 2205143 - 2² = 2205139 is a prime.

It is a d-powerful number, because it can be written as 2¹⁵ + 2²¹ + 0 + 5⁵ + 1 + 4⁸ + 3⁸ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2205149) 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, 371 + ... + 2132.

It is an arithmetic number, because the mean of its divisors is an integer number (552132).

2^2205143 is an apocalyptic number.

2205143 is a deficient number, since it is larger than the sum of its proper divisors (3385).

2205143 is an equidigital number, since it uses as much as digits as its factorization.

2205143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3384.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2205143 is about 1484.9723903157. The cubic root of 2205143 is about 130.1604134164.

The spelling of 2205143 in words is "two million, two hundred five thousand, one hundred forty-three".