12718019 has 2 divisors, whose sum is σ = 12718020. Its totient is φ = 12718018.

The previous prime is 12718009. The next prime is 12718033. The reversal of 12718019 is 91081721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12718019 - 2⁴ = 12718003 is a prime.

It is a super-2 number, since 2×12718019² = 323496014568722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12717982 and 12718000.

It is not a weakly prime, because it can be changed into another prime (12718009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6359009 + 6359010.

It is an arithmetic number, because the mean of its divisors is an integer number (6359010).

Almost surely, 2^12718019 is an apocalyptic number.

12718019 is a deficient number, since it is larger than the sum of its proper divisors (1).

12718019 is an equidigital number, since it uses as much as digits as its factorization.

12718019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 12718019 is about 3566.2331668022. The cubic root of 12718019 is about 233.4209451040.

The spelling of 12718019 in words is "twelve million, seven hundred eighteen thousand, nineteen".