18190241 has 2 divisors, whose sum is σ = 18190242. Its totient is φ = 18190240.

The previous prime is 18190223. The next prime is 18190259. The reversal of 18190241 is 14209181.

It is a balanced prime because it is at equal distance from previous prime (18190223) and next prime (18190259).

It can be written as a sum of positive squares in only one way, i.e., 18190225 + 16 = 4265^2 + 4^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18190241 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18190241.

It is not a weakly prime, because it can be changed into another prime (18190541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9095120 + 9095121.

It is an arithmetic number, because the mean of its divisors is an integer number (9095121).

Almost surely, 2^18190241 is an apocalyptic number.

It is an amenable number.

18190241 is a deficient number, since it is larger than the sum of its proper divisors (1).

18190241 is an equidigital number, since it uses as much as digits as its factorization.

18190241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 18190241 is about 4265.0018757323. The cubic root of 18190241 is about 262.9941880194.

The spelling of 18190241 in words is "eighteen million, one hundred ninety thousand, two hundred forty-one".