13894019 has 2 divisors, whose sum is σ = 13894020. Its totient is φ = 13894018.

The previous prime is 13894009. The next prime is 13894021. The reversal of 13894019 is 91049831.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13894019 is a prime.

It is a super-2 number, since 2×13894019² = 386087527944722, which contains 22 as substring.

Together with 13894021, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13894019.

It is not a weakly prime, because it can be changed into another prime (13894009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6947009 + 6947010.

It is an arithmetic number, because the mean of its divisors is an integer number (6947010).

Almost surely, 2^13894019 is an apocalyptic number.

13894019 is a deficient number, since it is larger than the sum of its proper divisors (1).

13894019 is an equidigital number, since it uses as much as digits as its factorization.

13894019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 13894019 is about 3727.4681755851. The cubic root of 13894019 is about 240.4045203436.

The spelling of 13894019 in words is "thirteen million, eight hundred ninety-four thousand, nineteen".