288181 has 2 divisors, whose sum is σ = 288182. Its totient is φ = 288180.

The previous prime is 288179. The next prime is 288191. The reversal of 288181 is 181882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 285156 + 3025 = 534^2 + 55^2 .

It is a cyclic number.

It is not a de Polignac number, because 288181 - 2¹ = 288179 is a prime.

It is a super-2 number, since 2×288181² = 166096577522, which contains 22 as substring.

Together with 288179, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (288191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144090 + 144091.

It is an arithmetic number, because the mean of its divisors is an integer number (144091).

2²⁸⁸¹⁸¹ is an apocalyptic number.

It is an amenable number.

288181 is a deficient number, since it is larger than the sum of its proper divisors (1).

288181 is an equidigital number, since it uses as much as digits as its factorization.

288181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1024, while the sum is 28.

The square root of 288181 is about 536.8249249057. The cubic root of 288181 is about 66.0523765444.

The spelling of 288181 in words is "two hundred eighty-eight thousand, one hundred eighty-one".