18090301 has 2 divisors, whose sum is σ = 18090302. Its totient is φ = 18090300.

The previous prime is 18090271. The next prime is 18090341. The reversal of 18090301 is 10309081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10719076 + 7371225 = 3274^2 + 2715^2 .

It is a cyclic number.

It is not a de Polignac number, because 18090301 - 2⁵ = 18090269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18090341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9045150 + 9045151.

It is an arithmetic number, because the mean of its divisors is an integer number (9045151).

Almost surely, 2^18090301 is an apocalyptic number.

It is an amenable number.

18090301 is a deficient number, since it is larger than the sum of its proper divisors (1).

18090301 is an equidigital number, since it uses as much as digits as its factorization.

18090301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 18090301 is about 4253.2694483186. The cubic root of 18090301 is about 262.5116596484.

Adding to 18090301 its reverse (10309081), we get a palindrome (28399382).

The spelling of 18090301 in words is "eighteen million, ninety thousand, three hundred one".