2134607921 has 2 divisors, whose sum is σ = 2134607922. Its totient is φ = 2134607920.

The previous prime is 2134607911. The next prime is 2134607933. The reversal of 2134607921 is 1297064312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1557407296 + 577200625 = 39464^2 + 24025^2 .

It is a cyclic number.

It is not a de Polignac number, because 2134607921 - 2⁶ = 2134607857 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2134607911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067303960 + 1067303961.

It is an arithmetic number, because the mean of its divisors is an integer number (1067303961).

Almost surely, 2^2134607921 is an apocalyptic number.

It is an amenable number.

2134607921 is a deficient number, since it is larger than the sum of its proper divisors (1).

2134607921 is an equidigital number, since it uses as much as digits as its factorization.

2134607921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 2134607921 is about 46201.8172910980. The cubic root of 2134607921 is about 1287.5755036125.

The spelling of 2134607921 in words is "two billion, one hundred thirty-four million, six hundred seven thousand, nine hundred twenty-one".