2183281 has 2 divisors, whose sum is σ = 2183282. Its totient is φ = 2183280.

The previous prime is 2183261. The next prime is 2183287. The reversal of 2183281 is 1823812.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1846881 + 336400 = 1359^2 + 580^2 .

It is a cyclic number.

It is not a de Polignac number, because 2183281 - 2⁵ = 2183249 is a prime.

It is a super-2 number, since 2×2183281² = 9533431849922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2183287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1091640 + 1091641.

It is an arithmetic number, because the mean of its divisors is an integer number (1091641).

2^2183281 is an apocalyptic number.

It is an amenable number.

2183281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2183281 is an equidigital number, since it uses as much as digits as its factorization.

2183281 is an evil number, because the sum of its binary digits is even.

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

The square root of 2183281 is about 1477.5929750780. The cubic root of 2183281 is about 129.7288430921.

The spelling of 2183281 in words is "two million, one hundred eighty-three thousand, two hundred eighty-one".