19014209 has 2 divisors, whose sum is σ = 19014210. Its totient is φ = 19014208.

The previous prime is 19014187. The next prime is 19014239. The reversal of 19014209 is 90241091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11751184 + 7263025 = 3428^2 + 2695^2 .

It is an emirp because it is prime and its reverse (90241091) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19014209 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (19014239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9507104 + 9507105.

It is an arithmetic number, because the mean of its divisors is an integer number (9507105).

Almost surely, 2^19014209 is an apocalyptic number.

It is an amenable number.

19014209 is a deficient number, since it is larger than the sum of its proper divisors (1).

19014209 is an equidigital number, since it uses as much as digits as its factorization.

19014209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 19014209 is about 4360.5285230119. The cubic root of 19014209 is about 266.9066664010.

The spelling of 19014209 in words is "nineteen million, fourteen thousand, two hundred nine".