2268450181 has 2 divisors, whose sum is σ = 2268450182. Its totient is φ = 2268450180.

The previous prime is 2268450179. The next prime is 2268450269. The reversal of 2268450181 is 1810548622.

2268450181 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., 2225008900 + 43441281 = 47170^2 + 6591^2 .

It is a cyclic number.

It is not a de Polignac number, because 2268450181 - 2¹ = 2268450179 is a prime.

It is a super-2 number, since 2×2268450181² = 10291732447357865522, which contains 22 as substring.

Together with 2268450179, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2268450181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2268450281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1134225090 + 1134225091.

It is an arithmetic number, because the mean of its divisors is an integer number (1134225091).

Almost surely, 2^2268450181 is an apocalyptic number.

It is an amenable number.

2268450181 is a deficient number, since it is larger than the sum of its proper divisors (1).

2268450181 is an equidigital number, since it uses as much as digits as its factorization.

2268450181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 2268450181 is about 47628.2498208784. The cubic root of 2268450181 is about 1313.9426663876.

The spelling of 2268450181 in words is "two billion, two hundred sixty-eight million, four hundred fifty thousand, one hundred eighty-one".