12286919 has 2 divisors, whose sum is σ = 12286920. Its totient is φ = 12286918.

The previous prime is 12286891. The next prime is 12286931. The reversal of 12286919 is 91968221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12286919 is a prime.

It is a super-2 number, since 2×12286919² = 301936757025122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12286969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6143459 + 6143460.

It is an arithmetic number, because the mean of its divisors is an integer number (6143460).

Almost surely, 2^12286919 is an apocalyptic number.

12286919 is a deficient number, since it is larger than the sum of its proper divisors (1).

12286919 is an equidigital number, since it uses as much as digits as its factorization.

12286919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 38.

The square root of 12286919 is about 3505.2701750364. The cubic root of 12286919 is about 230.7531642461.

The spelling of 12286919 in words is "twelve million, two hundred eighty-six thousand, nine hundred nineteen".