19020247 has 2 divisors, whose sum is σ = 19020248. Its totient is φ = 19020246.

The previous prime is 19020203. The next prime is 19020271. The reversal of 19020247 is 74202091.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19020247 - 2²³ = 10631639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19020647) 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, 9510123 + 9510124.

It is an arithmetic number, because the mean of its divisors is an integer number (9510124).

Almost surely, 2^19020247 is an apocalyptic number.

19020247 is a deficient number, since it is larger than the sum of its proper divisors (1).

19020247 is an equidigital number, since it uses as much as digits as its factorization.

19020247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 19020247 is about 4361.2208153222. The cubic root of 19020247 is about 266.9349156591.

The spelling of 19020247 in words is "nineteen million, twenty thousand, two hundred forty-seven".