320385151 has 2 divisors, whose sum is σ = 320385152. Its totient is φ = 320385150.

The previous prime is 320385113. The next prime is 320385173. The reversal of 320385151 is 151583023.

It is a strong prime.

It is an emirp because it is prime and its reverse (151583023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320385151 - 2⁹ = 320384639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320385181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160192575 + 160192576.

It is an arithmetic number, because the mean of its divisors is an integer number (160192576).

Almost surely, 2^320385151 is an apocalyptic number.

320385151 is a deficient number, since it is larger than the sum of its proper divisors (1).

320385151 is an equidigital number, since it uses as much as digits as its factorization.

320385151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 320385151 is about 17899.3058803966. The cubic root of 320385151 is about 684.2646848762.

The spelling of 320385151 in words is "three hundred twenty million, three hundred eighty-five thousand, one hundred fifty-one".