2134213009 has 2 divisors, whose sum is σ = 2134213010. Its totient is φ = 2134213008.

The previous prime is 2134213007. The next prime is 2134213043. The reversal of 2134213009 is 9003124312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2088947025 + 45265984 = 45705^2 + 6728^2 .

It is a cyclic number.

It is not a de Polignac number, because 2134213009 - 2¹ = 2134213007 is a prime.

Together with 2134213007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2134213007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067106504 + 1067106505.

It is an arithmetic number, because the mean of its divisors is an integer number (1067106505).

Almost surely, 2^2134213009 is an apocalyptic number.

It is an amenable number.

2134213009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2134213009 is an equidigital number, since it uses as much as digits as its factorization.

2134213009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 2134213009 is about 46197.5433221292. The cubic root of 2134213009 is about 1287.4960963089.

The spelling of 2134213009 in words is "two billion, one hundred thirty-four million, two hundred thirteen thousand, nine".