13332181 has 2 divisors, whose sum is σ = 13332182. Its totient is φ = 13332180.

The previous prime is 13332169. The next prime is 13332191. The reversal of 13332181 is 18123331.

13332181 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11329956 + 2002225 = 3366^2 + 1415^2 .

It is an emirp because it is prime and its reverse (18123331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13332181 - 2²³ = 4943573 is a prime.

It is a super-2 number, since 2×13332181² = 355494100433522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13332191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6666090 + 6666091.

It is an arithmetic number, because the mean of its divisors is an integer number (6666091).

Almost surely, 2^13332181 is an apocalyptic number.

It is an amenable number.

13332181 is a deficient number, since it is larger than the sum of its proper divisors (1).

13332181 is an equidigital number, since it uses as much as digits as its factorization.

13332181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 22.

The square root of 13332181 is about 3651.3259235516. The cubic root of 13332181 is about 237.1193888913.

The spelling of 13332181 in words is "thirteen million, three hundred thirty-two thousand, one hundred eighty-one".