2245121 has 2 divisors, whose sum is σ = 2245122. Its totient is φ = 2245120.

The previous prime is 2245063. The next prime is 2245141. The reversal of 2245121 is 1215422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1132096 + 1113025 = 1064^2 + 1055^2 .

It is a cyclic number.

It is not a de Polignac number, because 2245121 - 2⁶ = 2245057 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 2245121.

It is not a weakly prime, because it can be changed into another prime (2245141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1122560 + 1122561.

It is an arithmetic number, because the mean of its divisors is an integer number (1122561).

2^2245121 is an apocalyptic number.

It is an amenable number.

2245121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2245121 is an equidigital number, since it uses as much as digits as its factorization.

2245121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 160, while the sum is 17.

The square root of 2245121 is about 1498.3727840561. The cubic root of 2245121 is about 130.9422856308.

The spelling of 2245121 in words is "two million, two hundred forty-five thousand, one hundred twenty-one".