18482549 has 2 divisors, whose sum is σ = 18482550. Its totient is φ = 18482548.

The previous prime is 18482539. The next prime is 18482617. The reversal of 18482549 is 94528481.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14554225 + 3928324 = 3815^2 + 1982^2 .

It is an emirp because it is prime and its reverse (94528481) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18482549 - 2¹⁶ = 18417013 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18482539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9241274 + 9241275.

It is an arithmetic number, because the mean of its divisors is an integer number (9241275).

Almost surely, 2^18482549 is an apocalyptic number.

It is an amenable number.

18482549 is a deficient number, since it is larger than the sum of its proper divisors (1).

18482549 is an equidigital number, since it uses as much as digits as its factorization.

18482549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 92160, while the sum is 41.

The square root of 18482549 is about 4299.1335173497. The cubic root of 18482549 is about 264.3954368156.

The spelling of 18482549 in words is "eighteen million, four hundred eighty-two thousand, five hundred forty-nine".