320341481 has 2 divisors, whose sum is σ = 320341482. Its totient is φ = 320341480.

The previous prime is 320341477. The next prime is 320341513. The reversal of 320341481 is 184143023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210511081 + 109830400 = 14509^2 + 10480^2 .

It is a cyclic number.

It is not a de Polignac number, because 320341481 - 2² = 320341477 is a prime.

It is a super-2 number, since 2×320341481² = 205237328898546722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 320341481.

It is not a weakly prime, because it can be changed into another prime (320341451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160170740 + 160170741.

It is an arithmetic number, because the mean of its divisors is an integer number (160170741).

Almost surely, 2^320341481 is an apocalyptic number.

It is an amenable number.

320341481 is a deficient number, since it is larger than the sum of its proper divisors (1).

320341481 is an equidigital number, since it uses as much as digits as its factorization.

320341481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 320341481 is about 17898.0859591186. The cubic root of 320341481 is about 684.2335939673.

The spelling of 320341481 in words is "three hundred twenty million, three hundred forty-one thousand, four hundred eighty-one".