2328181 has 2 divisors, whose sum is σ = 2328182. Its totient is φ = 2328180.

The previous prime is 2328173. The next prime is 2328211. The reversal of 2328181 is 1818232.

2328181 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., 2160900 + 167281 = 1470^2 + 409^2 .

It is a cyclic number.

It is not a de Polignac number, because 2328181 - 2³ = 2328173 is a prime.

It is a super-2 number, since 2×2328181² = 10840853537522, which contains 22 as substring.

2328181 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2328281) 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, 1164090 + 1164091.

It is an arithmetic number, because the mean of its divisors is an integer number (1164091).

2^2328181 is an apocalyptic number.

It is an amenable number.

2328181 is a deficient number, since it is larger than the sum of its proper divisors (1).

2328181 is an equidigital number, since it uses as much as digits as its factorization.

2328181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768, while the sum is 25.

The square root of 2328181 is about 1525.8378026514. The cubic root of 2328181 is about 132.5375424649.

The spelling of 2328181 in words is "two million, three hundred twenty-eight thousand, one hundred eighty-one".