2281109 has 2 divisors, whose sum is σ = 2281110. Its totient is φ = 2281108.

The previous prime is 2281099. The next prime is 2281127. The reversal of 2281109 is 9011822.

2281109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2220100 + 61009 = 1490^2 + 247^2 .

It is a cyclic number.

It is not a de Polignac number, because 2281109 - 2⁴ = 2281093 is a prime.

It is a Sophie Germain prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2281189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1140554 + 1140555.

It is an arithmetic number, because the mean of its divisors is an integer number (1140555).

2^2281109 is an apocalyptic number.

It is an amenable number.

2281109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2281109 is an equidigital number, since it uses as much as digits as its factorization.

2281109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 2281109 is about 1510.3340690059. The cubic root of 2281109 is about 131.6382234845.

The spelling of 2281109 in words is "two million, two hundred eighty-one thousand, one hundred nine".