19441109 has 2 divisors, whose sum is σ = 19441110. Its totient is φ = 19441108.

The previous prime is 19441069. The next prime is 19441129. The reversal of 19441109 is 90114491.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14938225 + 4502884 = 3865^2 + 2122^2 .

It is an emirp because it is prime and its reverse (90114491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19441109 - 2¹² = 19437013 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19441129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9720554 + 9720555.

It is an arithmetic number, because the mean of its divisors is an integer number (9720555).

Almost surely, 2^19441109 is an apocalyptic number.

It is an amenable number.

19441109 is a deficient number, since it is larger than the sum of its proper divisors (1).

19441109 is an equidigital number, since it uses as much as digits as its factorization.

19441109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 19441109 is about 4409.2072983701. The cubic root of 19441109 is about 268.8893977393.

The spelling of 19441109 in words is "nineteen million, four hundred forty-one thousand, one hundred nine".