320516051 has 2 divisors, whose sum is σ = 320516052. Its totient is φ = 320516050.

The previous prime is 320516041. The next prime is 320516057. The reversal of 320516051 is 150615023.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320516051 is a prime.

It is not a weakly prime, because it can be changed into another prime (320516057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160258025 + 160258026.

It is an arithmetic number, because the mean of its divisors is an integer number (160258026).

Almost surely, 2^320516051 is an apocalyptic number.

320516051 is a deficient number, since it is larger than the sum of its proper divisors (1).

320516051 is an equidigital number, since it uses as much as digits as its factorization.

320516051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 320516051 is about 17902.9620733553. The cubic root of 320516051 is about 684.3578623649.

The spelling of 320516051 in words is "three hundred twenty million, five hundred sixteen thousand, fifty-one".