320522105 has 4 divisors (see below), whose sum is σ = 384626532. Its totient is φ = 256417680.

The previous prime is 320522099. The next prime is 320522143. The reversal of 320522105 is 501225023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 501225023 = 13 ⋅38555771.

It can be written as a sum of positive squares in 2 ways, for example, as 207907561 + 112614544 = 14419^2 + 10612^2 .

It is not a de Polignac number, because 320522105 - 2¹⁴ = 320505721 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32052206 + ... + 32052215.

It is an arithmetic number, because the mean of its divisors is an integer number (96156633).

Almost surely, 2^320522105 is an apocalyptic number.

It is an amenable number.

320522105 is a deficient number, since it is larger than the sum of its proper divisors (64104427).

320522105 is an equidigital number, since it uses as much as digits as its factorization.

320522105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64104426.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 320522105 is about 17903.1311507233. The cubic root of 320522105 is about 684.3621711210.

Adding to 320522105 its reverse (501225023), we get a palindrome (821747128).

The spelling of 320522105 in words is "three hundred twenty million, five hundred twenty-two thousand, one hundred five".