320948651 has 2 divisors, whose sum is σ = 320948652. Its totient is φ = 320948650.

The previous prime is 320948623. The next prime is 320948669. The reversal of 320948651 is 156849023.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320948651 - 2⁶ = 320948587 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (320948051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160474325 + 160474326.

It is an arithmetic number, because the mean of its divisors is an integer number (160474326).

Almost surely, 2^320948651 is an apocalyptic number.

320948651 is a deficient number, since it is larger than the sum of its proper divisors (1).

320948651 is an equidigital number, since it uses as much as digits as its factorization.

320948651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 320948651 is about 17915.0397990069. The cubic root of 320948651 is about 684.6656161846.

The spelling of 320948651 in words is "three hundred twenty million, nine hundred forty-eight thousand, six hundred fifty-one".