13468181 has 2 divisors, whose sum is σ = 13468182. Its totient is φ = 13468180.

The previous prime is 13468163. The next prime is 13468187. The reversal of 13468181 is 18186431.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9302500 + 4165681 = 3050^2 + 2041^2 .

It is an emirp because it is prime and its reverse (18186431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13468181 - 2¹⁴ = 13451797 is a prime.

It is a super-2 number, since 2×13468181² = 362783798897522, 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 (13468187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6734090 + 6734091.

It is an arithmetic number, because the mean of its divisors is an integer number (6734091).

Almost surely, 2^13468181 is an apocalyptic number.

It is an amenable number.

13468181 is a deficient number, since it is larger than the sum of its proper divisors (1).

13468181 is an equidigital number, since it uses as much as digits as its factorization.

13468181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 32.

The square root of 13468181 is about 3669.9020422894. The cubic root of 13468181 is about 237.9229383540.

The spelling of 13468181 in words is "thirteen million, four hundred sixty-eight thousand, one hundred eighty-one".