12126619 has 2 divisors, whose sum is σ = 12126620. Its totient is φ = 12126618.

The previous prime is 12126571. The next prime is 12126629. The reversal of 12126619 is 91662121.

12126619 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12126619 - 2¹¹ = 12124571 is a prime.

It is a super-2 number, since 2×12126619² = 294109776742322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12126629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6063309 + 6063310.

It is an arithmetic number, because the mean of its divisors is an integer number (6063310).

Almost surely, 2^12126619 is an apocalyptic number.

12126619 is a deficient number, since it is larger than the sum of its proper divisors (1).

12126619 is an equidigital number, since it uses as much as digits as its factorization.

12126619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 28.

The square root of 12126619 is about 3482.3295363880. The cubic root of 12126619 is about 229.7452693384.

The spelling of 12126619 in words is "twelve million, one hundred twenty-six thousand, six hundred nineteen".