19069493 has 2 divisors, whose sum is σ = 19069494. Its totient is φ = 19069492.

The previous prime is 19069489. The next prime is 19069513. The reversal of 19069493 is 39496091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18464209 + 605284 = 4297^2 + 778^2 .

It is an emirp because it is prime and its reverse (39496091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19069493 - 2² = 19069489 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 19069493.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19069423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9534746 + 9534747.

It is an arithmetic number, because the mean of its divisors is an integer number (9534747).

Almost surely, 2^19069493 is an apocalyptic number.

It is an amenable number.

19069493 is a deficient number, since it is larger than the sum of its proper divisors (1).

19069493 is an equidigital number, since it uses as much as digits as its factorization.

19069493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 41.

The square root of 19069493 is about 4366.8630617412. The cubic root of 19069493 is about 267.1650940230.

The spelling of 19069493 in words is "nineteen million, sixty-nine thousand, four hundred ninety-three".