19049089 has 2 divisors, whose sum is σ = 19049090. Its totient is φ = 19049088.

The previous prime is 19049071. The next prime is 19049099. The reversal of 19049089 is 98094091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17572864 + 1476225 = 4192^2 + 1215^2 .

It is an emirp because it is prime and its reverse (98094091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19049089 - 2⁵ = 19049057 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (19049029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9524544 + 9524545.

It is an arithmetic number, because the mean of its divisors is an integer number (9524545).

Almost surely, 2^19049089 is an apocalyptic number.

It is an amenable number.

19049089 is a deficient number, since it is larger than the sum of its proper divisors (1).

19049089 is an equidigital number, since it uses as much as digits as its factorization.

19049089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 19049089 is about 4364.5262056723. The cubic root of 19049089 is about 267.0697728036.

The spelling of 19049089 in words is "nineteen million, forty-nine thousand, eighty-nine".