12126419 has 2 divisors, whose sum is σ = 12126420. Its totient is φ = 12126418.

The previous prime is 12126407. The next prime is 12126449. The reversal of 12126419 is 91462121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12126419 - 2⁴ = 12126403 is a prime.

It is a super-2 number, since 2×12126419² = 294100075527122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12126449) 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 as a sum of consecutive naturals, namely, 6063209 + 6063210.

It is an arithmetic number, because the mean of its divisors is an integer number (6063210).

Almost surely, 2^12126419 is an apocalyptic number.

12126419 is a deficient number, since it is larger than the sum of its proper divisors (1).

12126419 is an equidigital number, since it uses as much as digits as its factorization.

12126419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 26.

The square root of 12126419 is about 3482.3008198603. The cubic root of 12126419 is about 229.7440062959.

The spelling of 12126419 in words is "twelve million, one hundred twenty-six thousand, four hundred nineteen".