2146223 has 4 divisors (see below), whose sum is σ = 2215488. Its totient is φ = 2076960.

The previous prime is 2146219. The next prime is 2146231. The reversal of 2146223 is 3226412.

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 2146223 - 2² = 2146219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2146195 and 2146204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2146213) 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, 34586 + ... + 34647.

It is an arithmetic number, because the mean of its divisors is an integer number (553872).

2^2146223 is an apocalyptic number.

2146223 is a deficient number, since it is larger than the sum of its proper divisors (69265).

2146223 is an equidigital number, since it uses as much as digits as its factorization.

2146223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69264.

The product of its digits is 576, while the sum is 20.

The square root of 2146223 is about 1464.9993174060. Note that the first 3 decimals coincide. The cubic root of 2146223 is about 128.9906649496.

The spelling of 2146223 in words is "two million, one hundred forty-six thousand, two hundred twenty-three".