2054320309 has 2 divisors, whose sum is σ = 2054320310. Its totient is φ = 2054320308.

The previous prime is 2054320291. The next prime is 2054320349. The reversal of 2054320309 is 9030234502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2050097284 + 4223025 = 45278^2 + 2055^2 .

It is a cyclic number.

It is not a de Polignac number, because 2054320309 - 2¹⁹ = 2053796021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2054320349) 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, 1027160154 + 1027160155.

It is an arithmetic number, because the mean of its divisors is an integer number (1027160155).

Almost surely, 2^2054320309 is an apocalyptic number.

It is an amenable number.

2054320309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2054320309 is an equidigital number, since it uses as much as digits as its factorization.

2054320309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 2054320309 is about 45324.6104120046. The cubic root of 2054320309 is about 1271.2258626741.

The spelling of 2054320309 in words is "two billion, fifty-four million, three hundred twenty thousand, three hundred nine".