2104245161 has 2 divisors, whose sum is σ = 2104245162. Its totient is φ = 2104245160.

The previous prime is 2104245139. The next prime is 2104245223. The reversal of 2104245161 is 1615424012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1684609936 + 419635225 = 41044^2 + 20485^2 .

It is a cyclic number.

It is not a de Polignac number, because 2104245161 - 2⁶ = 2104245097 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2104245161.

It is not a weakly prime, because it can be changed into another prime (2104265161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1052122580 + 1052122581.

It is an arithmetic number, because the mean of its divisors is an integer number (1052122581).

Almost surely, 2^2104245161 is an apocalyptic number.

It is an amenable number.

2104245161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2104245161 is an equidigital number, since it uses as much as digits as its factorization.

2104245161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 2104245161 is about 45872.0520687706. The cubic root of 2104245161 is about 1281.4414833512.

Adding to 2104245161 its reverse (1615424012), we get a palindrome (3719669173).

The spelling of 2104245161 in words is "two billion, one hundred four million, two hundred forty-five thousand, one hundred sixty-one".