2842123 has 4 divisors (see below), whose sum is σ = 2849680. Its totient is φ = 2834568.

The previous prime is 2842097. The next prime is 2842127. The reversal of 2842123 is 3212482.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2842123 is a prime.

It is a Duffinian number.

2842123 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2842094 and 2842103.

It is not an unprimeable number, because it can be changed into a prime (2842127) 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, 3183 + ... + 3976.

It is an arithmetic number, because the mean of its divisors is an integer number (712420).

2^2842123 is an apocalyptic number.

2842123 is a deficient number, since it is larger than the sum of its proper divisors (7557).

2842123 is an equidigital number, since it uses as much as digits as its factorization.

2842123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7556.

The product of its digits is 768, while the sum is 22.

The square root of 2842123 is about 1685.8597213292. The cubic root of 2842123 is about 141.6492533768.

The spelling of 2842123 in words is "two million, eight hundred forty-two thousand, one hundred twenty-three".