12862019 has 2 divisors, whose sum is σ = 12862020. Its totient is φ = 12862018.

The previous prime is 12862009. The next prime is 12862021. The reversal of 12862019 is 91026821.

It is a strong prime.

It is an emirp because it is prime and its reverse (91026821) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12862019 is a prime.

It is a super-2 number, since 2×12862019² = 330863065512722, which contains 22 as substring.

Together with 12862021, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12861982 and 12862000.

It is not a weakly prime, because it can be changed into another prime (12862009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6431009 + 6431010.

It is an arithmetic number, because the mean of its divisors is an integer number (6431010).

Almost surely, 2^12862019 is an apocalyptic number.

12862019 is a deficient number, since it is larger than the sum of its proper divisors (1).

12862019 is an equidigital number, since it uses as much as digits as its factorization.

12862019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 12862019 is about 3586.3657091825. The cubic root of 12862019 is about 234.2986118824.

The spelling of 12862019 in words is "twelve million, eight hundred sixty-two thousand, nineteen".