12126319 has 2 divisors, whose sum is σ = 12126320. Its totient is φ = 12126318.

The previous prime is 12126307. The next prime is 12126349. The reversal of 12126319 is 91362121.

12126319 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (91362121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12126319 - 2²³ = 3737711 is a prime.

It is a super-2 number, since 2×12126319² = 294095224979522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12126293 and 12126302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12126349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6063159 + 6063160.

It is an arithmetic number, because the mean of its divisors is an integer number (6063160).

Almost surely, 2^12126319 is an apocalyptic number.

12126319 is a deficient number, since it is larger than the sum of its proper divisors (1).

12126319 is an equidigital number, since it uses as much as digits as its factorization.

12126319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 25.

The square root of 12126319 is about 3482.2864615077. The cubic root of 12126319 is about 229.7433747694.

The spelling of 12126319 in words is "twelve million, one hundred twenty-six thousand, three hundred nineteen".