12405319 has 2 divisors, whose sum is σ = 12405320. Its totient is φ = 12405318.

The previous prime is 12405317. The next prime is 12405331. The reversal of 12405319 is 91350421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12405319 - 2¹ = 12405317 is a prime.

It is a super-2 number, since 2×12405319² = 307783878983522, which contains 22 as substring.

Together with 12405317, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 12405293 and 12405302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12405313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6202659 + 6202660.

It is an arithmetic number, because the mean of its divisors is an integer number (6202660).

Almost surely, 2^12405319 is an apocalyptic number.

12405319 is a deficient number, since it is larger than the sum of its proper divisors (1).

12405319 is an equidigital number, since it uses as much as digits as its factorization.

12405319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 12405319 is about 3522.1185386071. The cubic root of 12405319 is about 231.4919956120.

The spelling of 12405319 in words is "twelve million, four hundred five thousand, three hundred nineteen".