2842143 has 4 divisors (see below), whose sum is σ = 3789528. Its totient is φ = 1894760.

The previous prime is 2842139. The next prime is 2842157. The reversal of 2842143 is 3412482.

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 2842143 - 2² = 2842139 is a prime.

It is an Ulam number.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2842193) 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, 473688 + ... + 473693.

It is an arithmetic number, because the mean of its divisors is an integer number (947382).

2^2842143 is an apocalyptic number.

2842143 is a deficient number, since it is larger than the sum of its proper divisors (947385).

2842143 is an equidigital number, since it uses as much as digits as its factorization.

2842143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 947384.

The product of its digits is 1536, while the sum is 24.

The square root of 2842143 is about 1685.8656530103. The cubic root of 2842143 is about 141.6495856376.

The spelling of 2842143 in words is "two million, eight hundred forty-two thousand, one hundred forty-three".