2129082049 has 2 divisors, whose sum is σ = 2129082050. Its totient is φ = 2129082048.

The previous prime is 2129082037. The next prime is 2129082073. The reversal of 2129082049 is 9402809212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2023650225 + 105431824 = 44985^2 + 10268^2 .

It is a cyclic number.

It is not a de Polignac number, because 2129082049 - 2¹¹ = 2129080001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2129081999 and 2129082017.

It is not a weakly prime, because it can be changed into another prime (2129082079) 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, 1064541024 + 1064541025.

It is an arithmetic number, because the mean of its divisors is an integer number (1064541025).

Almost surely, 2^2129082049 is an apocalyptic number.

It is an amenable number.

2129082049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2129082049 is an equidigital number, since it uses as much as digits as its factorization.

2129082049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 2129082049 is about 46141.9770816119. The cubic root of 2129082049 is about 1286.4634920925.

The spelling of 2129082049 in words is "two billion, one hundred twenty-nine million, eighty-two thousand, forty-nine".