18448271 has 2 divisors, whose sum is σ = 18448272. Its totient is φ = 18448270.

The previous prime is 18448223. The next prime is 18448273. The reversal of 18448271 is 17284481.

It is a strong prime.

It is an emirp because it is prime and its reverse (17284481) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18448271 - 2¹⁸ = 18186127 is a prime.

Together with 18448273, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18448273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9224135 + 9224136.

It is an arithmetic number, because the mean of its divisors is an integer number (9224136).

Almost surely, 2^18448271 is an apocalyptic number.

18448271 is a deficient number, since it is larger than the sum of its proper divisors (1).

18448271 is an equidigital number, since it uses as much as digits as its factorization.

18448271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14336, while the sum is 35.

The square root of 18448271 is about 4295.1450499372. The cubic root of 18448271 is about 264.2318851446.

The spelling of 18448271 in words is "eighteen million, four hundred forty-eight thousand, two hundred seventy-one".