12423219 has 8 divisors (see below), whose sum is σ = 17098752. Its totient is φ = 8014920.

The previous prime is 12423211. The next prime is 12423233. The reversal of 12423219 is 91232421.

12423219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12423219 - 2³ = 12423211 is a prime.

It is a super-2 number, since 2×12423219² = 308672740643922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12423211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66699 + ... + 66884.

It is an arithmetic number, because the mean of its divisors is an integer number (2137344).

Almost surely, 2^12423219 is an apocalyptic number.

12423219 is a deficient number, since it is larger than the sum of its proper divisors (4675533).

12423219 is a wasteful number, since it uses less digits than its factorization.

12423219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133617.

The product of its digits is 864, while the sum is 24.

The square root of 12423219 is about 3524.6587068821. The cubic root of 12423219 is about 231.6032843071.

It can be divided in two parts, 124232 and 19, that added together give a triangular number (124251 = T₄₉₈).

The spelling of 12423219 in words is "twelve million, four hundred twenty-three thousand, two hundred nineteen".