2243272169 has 2 divisors, whose sum is σ = 2243272170. Its totient is φ = 2243272168.

The previous prime is 2243272159. The next prime is 2243272219. The reversal of 2243272169 is 9612723422.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2227368025 + 15904144 = 47195^2 + 3988^2 .

It is a cyclic number.

It is not a de Polignac number, because 2243272169 - 2²⁰ = 2242223593 is a prime.

It is a super-2 number, since 2×2243272169² = 10064540048419929122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2243272139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1121636084 + 1121636085.

It is an arithmetic number, because the mean of its divisors is an integer number (1121636085).

Almost surely, 2^2243272169 is an apocalyptic number.

It is an amenable number.

2243272169 is a deficient number, since it is larger than the sum of its proper divisors (1).

2243272169 is an equidigital number, since it uses as much as digits as its factorization.

2243272169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 38.

The square root of 2243272169 is about 47363.1942440541. The cubic root of 2243272169 is about 1309.0633261086.

The spelling of 2243272169 in words is "two billion, two hundred forty-three million, two hundred seventy-two thousand, one hundred sixty-nine".