2078123 has 2 divisors, whose sum is σ = 2078124. Its totient is φ = 2078122.

The previous prime is 2078117. The next prime is 2078149. The reversal of 2078123 is 3218702.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2078123 - 2⁴ = 2078107 is a prime.

It is not a weakly prime, because it can be changed into another prime (2078723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1039061 + 1039062.

It is an arithmetic number, because the mean of its divisors is an integer number (1039062).

2^2078123 is an apocalyptic number.

2078123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2078123 is an equidigital number, since it uses as much as digits as its factorization.

2078123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 2078123 is about 1441.5696306457. The cubic root of 2078123 is about 127.6116771119.

The spelling of 2078123 in words is "two million, seventy-eight thousand, one hundred twenty-three".