320054213 has 2 divisors, whose sum is σ = 320054214. Its totient is φ = 320054212.

The previous prime is 320054197. The next prime is 320054219. The reversal of 320054213 is 312450023.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 214827649 + 105226564 = 14657^2 + 10258^2 .

It is a cyclic number.

It is not a de Polignac number, because 320054213 - 2⁴ = 320054197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320054219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160027106 + 160027107.

It is an arithmetic number, because the mean of its divisors is an integer number (160027107).

Almost surely, 2^320054213 is an apocalyptic number.

It is an amenable number.

320054213 is a deficient number, since it is larger than the sum of its proper divisors (1).

320054213 is an equidigital number, since it uses as much as digits as its factorization.

320054213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 320054213 is about 17890.0590552407. The cubic root of 320054213 is about 684.0290027088.

The spelling of 320054213 in words is "three hundred twenty million, fifty-four thousand, two hundred thirteen".