2028123 has 6 divisors (see below), whose sum is σ = 2929524. Its totient is φ = 1352076.

The previous prime is 2028121. The next prime is 2028137. The reversal of 2028123 is 3218202.

It is a happy number.

It is not a de Polignac number, because 2028123 - 2¹ = 2028121 is a prime.

It is a super-2 number, since 2×2028123² = 8226565806258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2028096 and 2028105.

It is not an unprimeable number, because it can be changed into a prime (2028121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 112665 + ... + 112682.

It is an arithmetic number, because the mean of its divisors is an integer number (488254).

2^2028123 is an apocalyptic number.

2028123 is a deficient number, since it is larger than the sum of its proper divisors (901401).

2028123 is a wasteful number, since it uses less digits than its factorization.

2028123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225353 (or 225350 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 2028123 is about 1424.1218346757. The cubic root of 2028123 is about 126.5799044195.

The spelling of 2028123 in words is "two million, twenty-eight thousand, one hundred twenty-three".