2090123 has 4 divisors (see below), whose sum is σ = 2388720. Its totient is φ = 1791528.

The previous prime is 2090119. The next prime is 2090131. The reversal of 2090123 is 3210902.

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 2090123 - 2² = 2090119 is a prime.

It is a super-2 number, since 2×2090123² = 8737228310258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2090173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149288 + ... + 149301.

It is an arithmetic number, because the mean of its divisors is an integer number (597180).

2^2090123 is an apocalyptic number.

2090123 is a deficient number, since it is larger than the sum of its proper divisors (298597).

2090123 is an equidigital number, since it uses as much as digits as its factorization.

2090123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298596.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2090123 is about 1445.7257692937. The cubic root of 2090123 is about 127.8568345609.

The spelling of 2090123 in words is "two million, ninety thousand, one hundred twenty-three".