2128241 has 2 divisors, whose sum is σ = 2128242. Its totient is φ = 2128240.

The previous prime is 2128201. The next prime is 2128253. The reversal of 2128241 is 1428212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1311025 + 817216 = 1145^2 + 904^2 .

It is a cyclic number.

It is not a de Polignac number, because 2128241 - 2⁶ = 2128177 is a prime.

It is a super-3 number, since 3×2128241³ = 28919026633305304563, which contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (2128201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064120 + 1064121.

It is an arithmetic number, because the mean of its divisors is an integer number (1064121).

2^2128241 is an apocalyptic number.

It is an amenable number.

2128241 is a deficient number, since it is larger than the sum of its proper divisors (1).

2128241 is an equidigital number, since it uses as much as digits as its factorization.

2128241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 256, while the sum is 20.

The square root of 2128241 is about 1458.8492039961. The cubic root of 2128241 is about 128.6294073017.

The spelling of 2128241 in words is "two million, one hundred twenty-eight thousand, two hundred forty-one".