320145767 has 2 divisors, whose sum is σ = 320145768. Its totient is φ = 320145766.

The previous prime is 320145757. The next prime is 320145769. The reversal of 320145767 is 767541023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320145767 - 2¹⁶ = 320080231 is a prime.

Together with 320145769, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320145769) 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, 160072883 + 160072884.

It is an arithmetic number, because the mean of its divisors is an integer number (160072884).

Almost surely, 2^320145767 is an apocalyptic number.

320145767 is a deficient number, since it is larger than the sum of its proper divisors (1).

320145767 is an equidigital number, since it uses as much as digits as its factorization.

320145767 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 320145767 is about 17892.6176676304. The cubic root of 320145767 is about 684.0942204315.

The spelling of 320145767 in words is "three hundred twenty million, one hundred forty-five thousand, seven hundred sixty-seven".