2268124561 has 2 divisors, whose sum is σ = 2268124562. Its totient is φ = 2268124560.

The previous prime is 2268124477. The next prime is 2268124591. The reversal of 2268124561 is 1654218622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1190250000 + 1077874561 = 34500^2 + 32831^2 .

It is a cyclic number.

It is not a de Polignac number, because 2268124561 - 2¹¹ = 2268122513 is a prime.

It is a super-2 number, since 2×2268124561² = 10288778048422885442, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2268124561.

It is not a weakly prime, because it can be changed into another prime (2268124591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1134062280 + 1134062281.

It is an arithmetic number, because the mean of its divisors is an integer number (1134062281).

Almost surely, 2^2268124561 is an apocalyptic number.

It is an amenable number.

2268124561 is a deficient number, since it is larger than the sum of its proper divisors (1).

2268124561 is an equidigital number, since it uses as much as digits as its factorization.

2268124561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 37.

The square root of 2268124561 is about 47624.8313487827. The cubic root of 2268124561 is about 1313.8797943163.

The spelling of 2268124561 in words is "two billion, two hundred sixty-eight million, one hundred twenty-four thousand, five hundred sixty-one".