2184641 has 2 divisors, whose sum is σ = 2184642. Its totient is φ = 2184640.

The previous prime is 2184631. The next prime is 2184647. The reversal of 2184641 is 1464812.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2146225 + 38416 = 1465^2 + 196^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2184641 is a prime.

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 2184641.

It is not a weakly prime, because it can be changed into another prime (2184647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1092320 + 1092321.

It is an arithmetic number, because the mean of its divisors is an integer number (1092321).

2^2184641 is an apocalyptic number.

It is an amenable number.

2184641 is a deficient number, since it is larger than the sum of its proper divisors (1).

2184641 is an equidigital number, since it uses as much as digits as its factorization.

2184641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536, while the sum is 26.

The square root of 2184641 is about 1478.0531113597. The cubic root of 2184641 is about 129.7557742117.

The spelling of 2184641 in words is "two million, one hundred eighty-four thousand, six hundred forty-one".