13330181 has 2 divisors, whose sum is σ = 13330182. Its totient is φ = 13330180.

The previous prime is 13330171. The next prime is 13330199. The reversal of 13330181 is 18103331.

It is a happy number.

13330181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10660225 + 2669956 = 3265^2 + 1634^2 .

It is an emirp because it is prime and its reverse (18103331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13330181 - 2⁶ = 13330117 is a prime.

It is a super-2 number, since 2×13330181² = 355387450985522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13330171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6665090 + 6665091.

It is an arithmetic number, because the mean of its divisors is an integer number (6665091).

Almost surely, 2^13330181 is an apocalyptic number.

It is an amenable number.

13330181 is a deficient number, since it is larger than the sum of its proper divisors (1).

13330181 is an equidigital number, since it uses as much as digits as its factorization.

13330181 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 20.

The square root of 13330181 is about 3651.0520401660. The cubic root of 13330181 is about 237.1075313042.

The spelling of 13330181 in words is "thirteen million, three hundred thirty thousand, one hundred eighty-one".