19424159 has 2 divisors, whose sum is σ = 19424160. Its totient is φ = 19424158.

The previous prime is 19424147. The next prime is 19424177. The reversal of 19424159 is 95142491.

It is a weak prime.

It is an emirp because it is prime and its reverse (95142491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19424159 - 2⁴ = 19424143 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (19424179) 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, 9712079 + 9712080.

It is an arithmetic number, because the mean of its divisors is an integer number (9712080).

Almost surely, 2^19424159 is an apocalyptic number.

19424159 is a deficient number, since it is larger than the sum of its proper divisors (1).

19424159 is an equidigital number, since it uses as much as digits as its factorization.

19424159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 35.

The square root of 19424159 is about 4407.2847650226. The cubic root of 19424159 is about 268.8112300365.

The spelling of 19424159 in words is "nineteen million, four hundred twenty-four thousand, one hundred fifty-nine".