320255171 has 2 divisors, whose sum is σ = 320255172. Its totient is φ = 320255170.

The previous prime is 320255137. The next prime is 320255183. The reversal of 320255171 is 171552023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320255171 - 2¹⁸ = 319993027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320255171.

It is not a weakly prime, because it can be changed into another prime (320255101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160127585 + 160127586.

It is an arithmetic number, because the mean of its divisors is an integer number (160127586).

Almost surely, 2^320255171 is an apocalyptic number.

320255171 is a deficient number, since it is larger than the sum of its proper divisors (1).

320255171 is an equidigital number, since it uses as much as digits as its factorization.

320255171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 320255171 is about 17895.6746450085. The cubic root of 320255171 is about 684.1721371474.

The spelling of 320255171 in words is "three hundred twenty million, two hundred fifty-five thousand, one hundred seventy-one".