12164223 has 4 divisors (see below), whose sum is σ = 16218968. Its totient is φ = 8109480.

The previous prime is 12164221. The next prime is 12164239. The reversal of 12164223 is 32246121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32246121 = 3 ⋅10748707.

It is not a de Polignac number, because 12164223 - 2¹ = 12164221 is a prime.

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 12164223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12164221) 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, 2027368 + ... + 2027373.

It is an arithmetic number, because the mean of its divisors is an integer number (4054742).

Almost surely, 2^12164223 is an apocalyptic number.

12164223 is a deficient number, since it is larger than the sum of its proper divisors (4054745).

12164223 is an equidigital number, since it uses as much as digits as its factorization.

12164223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4054744.

The product of its digits is 576, while the sum is 21.

The square root of 12164223 is about 3487.7246164226. The cubic root of 12164223 is about 229.9825002438.

The spelling of 12164223 in words is "twelve million, one hundred sixty-four thousand, two hundred twenty-three".