12168419 has 4 divisors (see below), whose sum is σ = 12232320. Its totient is φ = 12104520.

The previous prime is 12168397. The next prime is 12168421. The reversal of 12168419 is 91486121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91486121 = 19 ⋅4815059.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12168419 is a prime.

It is a super-2 number, since 2×12168419² = 296140841919122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12168019) 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, 31664 + ... + 32045.

It is an arithmetic number, because the mean of its divisors is an integer number (3058080).

Almost surely, 2^12168419 is an apocalyptic number.

12168419 is a deficient number, since it is larger than the sum of its proper divisors (63901).

12168419 is an equidigital number, since it uses as much as digits as its factorization.

12168419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63900.

The product of its digits is 3456, while the sum is 32.

The square root of 12168419 is about 3488.3261028751. The cubic root of 12168419 is about 230.0089410513.

The spelling of 12168419 in words is "twelve million, one hundred sixty-eight thousand, four hundred nineteen".