2281245809 has 2 divisors, whose sum is σ = 2281245810. Its totient is φ = 2281245808.

The previous prime is 2281245779. The next prime is 2281245859. The reversal of 2281245809 is 9085421822.

It is a happy number.

2281245809 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., 1656245809 + 625000000 = 40697^2 + 25000^2 .

It is a cyclic number.

It is not a de Polignac number, because 2281245809 - 2²⁴ = 2264468593 is a prime.

It is not a weakly prime, because it can be changed into another prime (2281245859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1140622904 + 1140622905.

It is an arithmetic number, because the mean of its divisors is an integer number (1140622905).

Almost surely, 2^2281245809 is an apocalyptic number.

It is an amenable number.

2281245809 is a deficient number, since it is larger than the sum of its proper divisors (1).

2281245809 is an equidigital number, since it uses as much as digits as its factorization.

2281245809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 2281245809 is about 47762.3890629437. The cubic root of 2281245809 is about 1316.4085508949.

The spelling of 2281245809 in words is "two billion, two hundred eighty-one million, two hundred forty-five thousand, eight hundred nine".