12919423 has 8 divisors (see below), whose sum is σ = 14273280. Its totient is φ = 11595480.

The previous prime is 12919397. The next prime is 12919427. The reversal of 12919423 is 32491921.

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

It is a cyclic number.

It is not a de Polignac number, because 12919423 - 2⁹ = 12918911 is a prime.

It is a super-2 number, since 2×12919423² = 333822981305858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12919427) 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 7 ways as a sum of consecutive naturals, for example, 6565 + ... + 8302.

It is an arithmetic number, because the mean of its divisors is an integer number (1784160).

Almost surely, 2^12919423 is an apocalyptic number.

12919423 is a deficient number, since it is larger than the sum of its proper divisors (1353857).

12919423 is a wasteful number, since it uses less digits than its factorization.

12919423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14957.

The product of its digits is 3888, while the sum is 31.

The square root of 12919423 is about 3594.3598873791. The cubic root of 12919423 is about 234.6466577597.

The spelling of 12919423 in words is "twelve million, nine hundred nineteen thousand, four hundred twenty-three".