18268241 has 2 divisors, whose sum is σ = 18268242. Its totient is φ = 18268240.

The previous prime is 18268223. The next prime is 18268259. The reversal of 18268241 is 14286281.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (18268223) and next prime (18268259).

It can be written as a sum of positive squares in only one way, i.e., 18105025 + 163216 = 4255^2 + 404^2 .

It is a cyclic number.

It is not a de Polignac number, because 18268241 - 2²² = 14073937 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18268198 and 18268207.

It is not a weakly prime, because it can be changed into another prime (18268441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9134120 + 9134121.

It is an arithmetic number, because the mean of its divisors is an integer number (9134121).

Almost surely, 2^18268241 is an apocalyptic number.

It is an amenable number.

18268241 is a deficient number, since it is larger than the sum of its proper divisors (1).

18268241 is an equidigital number, since it uses as much as digits as its factorization.

18268241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6144, while the sum is 32.

The square root of 18268241 is about 4274.1362870175. The cubic root of 18268241 is about 263.3695595447.

The spelling of 18268241 in words is "eighteen million, two hundred sixty-eight thousand, two hundred forty-one".