13804181 has 2 divisors, whose sum is σ = 13804182. Its totient is φ = 13804180.

The previous prime is 13804157. The next prime is 13804199. The reversal of 13804181 is 18140831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12460900 + 1343281 = 3530^2 + 1159^2 .

It is a cyclic number.

It is not a de Polignac number, because 13804181 - 2¹⁴ = 13787797 is a prime.

It is a super-2 number, since 2×13804181² = 381110826161522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13804181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13804111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6902090 + 6902091.

It is an arithmetic number, because the mean of its divisors is an integer number (6902091).

Almost surely, 2^13804181 is an apocalyptic number.

It is an amenable number.

13804181 is a deficient number, since it is larger than the sum of its proper divisors (1).

13804181 is an equidigital number, since it uses as much as digits as its factorization.

13804181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 13804181 is about 3715.3978252672. The cubic root of 13804181 is about 239.8852518586.

The spelling of 13804181 in words is "thirteen million, eight hundred four thousand, one hundred eighty-one".