2129329 has 2 divisors, whose sum is σ = 2129330. Its totient is φ = 2129328.

The previous prime is 2129321. The next prime is 2129333. The reversal of 2129329 is 9239212.

2129329 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2108304 + 21025 = 1452^2 + 145^2 .

It is a cyclic number.

It is not a de Polignac number, because 2129329 - 2³ = 2129321 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2129297 and 2129306.

It is not a weakly prime, because it can be changed into another prime (2129321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064664 + 1064665.

It is an arithmetic number, because the mean of its divisors is an integer number (1064665).

2^2129329 is an apocalyptic number.

It is an amenable number.

2129329 is a deficient number, since it is larger than the sum of its proper divisors (1).

2129329 is an equidigital number, since it uses as much as digits as its factorization.

2129329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 28.

The square root of 2129329 is about 1459.2220530132. Note that the first 3 decimals coincide. The cubic root of 2129329 is about 128.6513228889.

The spelling of 2129329 in words is "two million, one hundred twenty-nine thousand, three hundred twenty-nine".