2134444309 has 2 divisors, whose sum is σ = 2134444310. Its totient is φ = 2134444308.

The previous prime is 2134444303. The next prime is 2134444313. The reversal of 2134444309 is 9034444312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2040780625 + 93663684 = 45175^2 + 9678^2 .

It is a cyclic number.

It is not a de Polignac number, because 2134444309 - 2⁹ = 2134443797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2134444303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067222154 + 1067222155.

It is an arithmetic number, because the mean of its divisors is an integer number (1067222155).

Almost surely, 2^2134444309 is an apocalyptic number.

It is an amenable number.

2134444309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2134444309 is an equidigital number, since it uses as much as digits as its factorization.

2134444309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 2134444309 is about 46200.0466341756. The cubic root of 2134444309 is about 1287.5426063633.

The spelling of 2134444309 in words is "two billion, one hundred thirty-four million, four hundred forty-four thousand, three hundred nine".