19342249 has 2 divisors, whose sum is σ = 19342250. Its totient is φ = 19342248.

The previous prime is 19342223. The next prime is 19342259. The reversal of 19342249 is 94224391.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18147600 + 1194649 = 4260^2 + 1093^2 .

It is an emirp because it is prime and its reverse (94224391) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19342249 - 2⁷ = 19342121 is a prime.

It is a zygodrome in base 11.

It is not a weakly prime, because it can be changed into another prime (19342259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9671124 + 9671125.

It is an arithmetic number, because the mean of its divisors is an integer number (9671125).

Almost surely, 2^19342249 is an apocalyptic number.

It is an amenable number.

19342249 is a deficient number, since it is larger than the sum of its proper divisors (1).

19342249 is an equidigital number, since it uses as much as digits as its factorization.

19342249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 34.

The square root of 19342249 is about 4397.9823783185. The cubic root of 19342249 is about 268.4328464239.

It can be divided in two parts, 19342 and 249, that added together give a palindrome (19591).

The spelling of 19342249 in words is "nineteen million, three hundred forty-two thousand, two hundred forty-nine".