19242263 has 2 divisors, whose sum is σ = 19242264. Its totient is φ = 19242262.

The previous prime is 19242229. The next prime is 19242281. The reversal of 19242263 is 36224291.

It is a strong prime.

It is an emirp because it is prime and its reverse (36224291) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19242263 - 2¹⁴ = 19225879 is a prime.

It is a super-2 number, since 2×19242263² = 740529370722338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19242203) 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, 9621131 + 9621132.

It is an arithmetic number, because the mean of its divisors is an integer number (9621132).

Almost surely, 2^19242263 is an apocalyptic number.

19242263 is a deficient number, since it is larger than the sum of its proper divisors (1).

19242263 is an equidigital number, since it uses as much as digits as its factorization.

19242263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 29.

The square root of 19242263 is about 4386.6003921032. The cubic root of 19242263 is about 267.9695099716.

The spelling of 19242263 in words is "nineteen million, two hundred forty-two thousand, two hundred sixty-three".