2247044561 has 2 divisors, whose sum is σ = 2247044562. Its totient is φ = 2247044560.

The previous prime is 2247044549. The next prime is 2247044563. The reversal of 2247044561 is 1654407422.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1502027536 + 745017025 = 38756^2 + 27295^2 .

It is a cyclic number.

It is not a de Polignac number, because 2247044561 - 2¹⁰ = 2247043537 is a prime.

It is a Sophie Germain prime.

Together with 2247044563, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2247044563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1123522280 + 1123522281.

It is an arithmetic number, because the mean of its divisors is an integer number (1123522281).

Almost surely, 2^2247044561 is an apocalyptic number.

It is an amenable number.

2247044561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2247044561 is an equidigital number, since it uses as much as digits as its factorization.

2247044561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 2247044561 is about 47403.0016032740. The cubic root of 2247044561 is about 1309.7967093201.

The spelling of 2247044561 in words is "two billion, two hundred forty-seven million, forty-four thousand, five hundred sixty-one".