320223229 has 2 divisors, whose sum is σ = 320223230. Its totient is φ = 320223228.

The previous prime is 320223139. The next prime is 320223259. The reversal of 320223229 is 922322023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160706329 + 159516900 = 12677^2 + 12630^2 .

It is a cyclic number.

It is not a de Polignac number, because 320223229 - 2⁹ = 320222717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320223259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160111614 + 160111615.

It is an arithmetic number, because the mean of its divisors is an integer number (160111615).

Almost surely, 2^320223229 is an apocalyptic number.

It is an amenable number.

320223229 is a deficient number, since it is larger than the sum of its proper divisors (1).

320223229 is an equidigital number, since it uses as much as digits as its factorization.

320223229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 320223229 is about 17894.7821724658. The cubic root of 320223229 is about 684.1493901267.

The spelling of 320223229 in words is "three hundred twenty million, two hundred twenty-three thousand, two hundred twenty-nine".