19120247 has 2 divisors, whose sum is σ = 19120248. Its totient is φ = 19120246.

The previous prime is 19120237. The next prime is 19120253. The reversal of 19120247 is 74202191.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19120247 - 2¹⁴ = 19103863 is a prime.

It is a Chen prime.

It is equal to p_1218185 and since 19120247 and 1218185 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19120237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9560123 + 9560124.

It is an arithmetic number, because the mean of its divisors is an integer number (9560124).

Almost surely, 2^19120247 is an apocalyptic number.

19120247 is a deficient number, since it is larger than the sum of its proper divisors (1).

19120247 is an equidigital number, since it uses as much as digits as its factorization.

19120247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 19120247 is about 4372.6704655165. The cubic root of 19120247 is about 267.4019065608.

The spelling of 19120247 in words is "nineteen million, one hundred twenty thousand, two hundred forty-seven".