19214243 has 2 divisors, whose sum is σ = 19214244. Its totient is φ = 19214242.

The previous prime is 19214231. The next prime is 19214291. The reversal of 19214243 is 34241291.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 19214243 - 2⁶ = 19214179 is a prime.

It is not a weakly prime, because it can be changed into another prime (19214213) 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, 9607121 + 9607122.

It is an arithmetic number, because the mean of its divisors is an integer number (9607122).

Almost surely, 2^19214243 is an apocalyptic number.

19214243 is a deficient number, since it is larger than the sum of its proper divisors (1).

19214243 is an equidigital number, since it uses as much as digits as its factorization.

19214243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 26.

The square root of 19214243 is about 4383.4054113212. The cubic root of 19214243 is about 267.8393770939.

The spelling of 19214243 in words is "nineteen million, two hundred fourteen thousand, two hundred forty-three".