2146123 has 4 divisors (see below), whose sum is σ = 2452720. Its totient is φ = 1839528.

The previous prime is 2146103. The next prime is 2146139. The reversal of 2146123 is 3216412.

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 2146123 - 2⁵ = 2146091 is a prime.

It is a super-2 number, since 2×2146123² = 9211687862258, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹¹ + 1 + 4⁴ + 6⁶ + 1 + 2²¹ + 3² .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2146123.

It is not an unprimeable number, because it can be changed into a prime (2146103) 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, 153288 + ... + 153301.

It is an arithmetic number, because the mean of its divisors is an integer number (613180).

2^2146123 is an apocalyptic number.

2146123 is a deficient number, since it is larger than the sum of its proper divisors (306597).

2146123 is an equidigital number, since it uses as much as digits as its factorization.

2146123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306596.

The product of its digits is 288, while the sum is 19.

The square root of 2146123 is about 1464.9651872997. The cubic root of 2146123 is about 128.9886615437.

The spelling of 2146123 in words is "two million, one hundred forty-six thousand, one hundred twenty-three".