2205323161 has 2 divisors, whose sum is σ = 2205323162. Its totient is φ = 2205323160.

The previous prime is 2205323149. The next prime is 2205323189. The reversal of 2205323161 is 1613235022.

2205323161 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., 1987465561 + 217857600 = 44581^2 + 14760^2 .

It is a cyclic number.

It is not a de Polignac number, because 2205323161 - 2⁹ = 2205322649 is a prime.

It is not a weakly prime, because it can be changed into another prime (2205323111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1102661580 + 1102661581.

It is an arithmetic number, because the mean of its divisors is an integer number (1102661581).

Almost surely, 2^2205323161 is an apocalyptic number.

It is an amenable number.

2205323161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2205323161 is an equidigital number, since it uses as much as digits as its factorization.

2205323161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 2205323161 is about 46960.8684012551. The cubic root of 2205323161 is about 1301.6395803786.

Adding to 2205323161 its reverse (1613235022), we get a palindrome (3818558183).

The spelling of 2205323161 in words is "two billion, two hundred five million, three hundred twenty-three thousand, one hundred sixty-one".