2243161409 has 2 divisors, whose sum is σ = 2243161410. Its totient is φ = 2243161408.

The previous prime is 2243161399. The next prime is 2243161421. The reversal of 2243161409 is 9041613422.

2243161409 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., 1686909184 + 556252225 = 41072^2 + 23585^2 .

It is a cyclic number.

It is not a de Polignac number, because 2243161409 - 2⁸ = 2243161153 is a prime.

It is not a weakly prime, because it can be changed into another prime (2243161499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121580704 + 1121580705.

It is an arithmetic number, because the mean of its divisors is an integer number (1121580705).

Almost surely, 2^2243161409 is an apocalyptic number.

It is an amenable number.

2243161409 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243161409 is an equidigital number, since it uses as much as digits as its factorization.

2243161409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 2243161409 is about 47362.0249672668. The cubic root of 2243161409 is about 1309.0417810575.

The spelling of 2243161409 in words is "two billion, two hundred forty-three million, one hundred sixty-one thousand, four hundred nine".