19419011 has 2 divisors, whose sum is σ = 19419012. Its totient is φ = 19419010.

The previous prime is 19418983. The next prime is 19419013. The reversal of 19419011 is 11091491.

It is a strong prime.

It is an emirp because it is prime and its reverse (11091491) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19419011 is a prime.

Together with 19419013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (19419013) 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, 9709505 + 9709506.

It is an arithmetic number, because the mean of its divisors is an integer number (9709506).

Almost surely, 2^19419011 is an apocalyptic number.

19419011 is a deficient number, since it is larger than the sum of its proper divisors (1).

19419011 is an equidigital number, since it uses as much as digits as its factorization.

19419011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 26.

The square root of 19419011 is about 4406.7006932625. The cubic root of 19419011 is about 268.7874801883.

The spelling of 19419011 in words is "nineteen million, four hundred nineteen thousand, eleven".