2162105129 has 2 divisors, whose sum is σ = 2162105130. Its totient is φ = 2162105128.

The previous prime is 2162105123. The next prime is 2162105159. The reversal of 2162105129 is 9215012612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1609855129 + 552250000 = 40123^2 + 23500^2 .

It is a cyclic number.

It is not a de Polignac number, because 2162105129 - 2⁸ = 2162104873 is a prime.

It is not a weakly prime, because it can be changed into another prime (2162105123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081052564 + 1081052565.

It is an arithmetic number, because the mean of its divisors is an integer number (1081052565).

Almost surely, 2^2162105129 is an apocalyptic number.

It is an amenable number.

2162105129 is a deficient number, since it is larger than the sum of its proper divisors (1).

2162105129 is an equidigital number, since it uses as much as digits as its factorization.

2162105129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 2162105129 is about 46498.4422212186. The cubic root of 2162105129 is about 1293.0806186820.

The spelling of 2162105129 in words is "two billion, one hundred sixty-two million, one hundred five thousand, one hundred twenty-nine".