2164441 has 2 divisors, whose sum is σ = 2164442. Its totient is φ = 2164440.

The previous prime is 2164433. The next prime is 2164447. The reversal of 2164441 is 1444612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1390041 + 774400 = 1179^2 + 880^2 .

It is a cyclic number.

It is not a de Polignac number, because 2164441 - 2³ = 2164433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2164447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082220 + 1082221.

It is an arithmetic number, because the mean of its divisors is an integer number (1082221).

2^2164441 is an apocalyptic number.

It is an amenable number.

2164441 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164441 is an equidigital number, since it uses as much as digits as its factorization.

2164441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 768, while the sum is 22.

The square root of 2164441 is about 1471.2039287604. The cubic root of 2164441 is about 129.3546119085.

The spelling of 2164441 in words is "two million, one hundred sixty-four thousand, four hundred forty-one".