12911419 has 4 divisors (see below), whose sum is σ = 12928896. Its totient is φ = 12893944.

The previous prime is 12911413. The next prime is 12911447. The reversal of 12911419 is 91411921.

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 12911419 - 2³ = 12911411 is a prime.

It is a super-2 number, since 2×12911419² = 333409481187122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12911411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7579 + ... + 9124.

It is an arithmetic number, because the mean of its divisors is an integer number (3232224).

Almost surely, 2^12911419 is an apocalyptic number.

12911419 is a deficient number, since it is larger than the sum of its proper divisors (17477).

12911419 is an equidigital number, since it uses as much as digits as its factorization.

12911419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17476.

The product of its digits is 648, while the sum is 28.

The square root of 12911419 is about 3593.2463038317. The cubic root of 12911419 is about 234.5981906873.

The spelling of 12911419 in words is "twelve million, nine hundred eleven thousand, four hundred nineteen".