13066819 has 2 divisors, whose sum is σ = 13066820. Its totient is φ = 13066818.

The previous prime is 13066817. The next prime is 13066831. The reversal of 13066819 is 91866031.

It is a weak prime.

It is an emirp because it is prime and its reverse (91866031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13066819 - 2¹ = 13066817 is a prime.

It is a super-2 number, since 2×13066819² = 341483517557522, which contains 22 as substring.

Together with 13066817, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (13066817) 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, 6533409 + 6533410.

It is an arithmetic number, because the mean of its divisors is an integer number (6533410).

Almost surely, 2^13066819 is an apocalyptic number.

13066819 is a deficient number, since it is larger than the sum of its proper divisors (1).

13066819 is an equidigital number, since it uses as much as digits as its factorization.

13066819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 13066819 is about 3614.8055272725. The cubic root of 13066819 is about 235.5356365008.

The spelling of 13066819 in words is "thirteen million, sixty-six thousand, eight hundred nineteen".