19369081 has 2 divisors, whose sum is σ = 19369082. Its totient is φ = 19369080.

The previous prime is 19369067. The next prime is 19369087. The reversal of 19369081 is 18096391.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17505856 + 1863225 = 4184^2 + 1365^2 .

It is a cyclic number.

It is not a de Polignac number, because 19369081 - 2⁷ = 19368953 is a prime.

It is a super-2 number, since 2×19369081² = 750322597569122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19369081.

It is not a weakly prime, because it can be changed into another prime (19369087) 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, 9684540 + 9684541.

It is an arithmetic number, because the mean of its divisors is an integer number (9684541).

Almost surely, 2^19369081 is an apocalyptic number.

It is an amenable number.

19369081 is a deficient number, since it is larger than the sum of its proper divisors (1).

19369081 is an equidigital number, since it uses as much as digits as its factorization.

19369081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 19369081 is about 4401.0318108371. The cubic root of 19369081 is about 268.5569144191.

The spelling of 19369081 in words is "nineteen million, three hundred sixty-nine thousand, eighty-one".