320120546 has 8 divisors (see below), whose sum is σ = 480452844. Its totient is φ = 159969600.

The previous prime is 320120543. The next prime is 320120597. The reversal of 320120546 is 645021023.

It can be written as a sum of positive squares in 2 ways, for example, as 318229921 + 1890625 = 17839^2 + 1375^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (320120543) 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 in 3 ways as a sum of consecutive naturals, for example, 40835 + ... + 48038.

Almost surely, 2^320120546 is an apocalyptic number.

320120546 is a deficient number, since it is larger than the sum of its proper divisors (160332298).

320120546 is a wasteful number, since it uses less digits than its factorization.

320120546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90676.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 320120546 is about 17891.9128658732. The cubic root of 320120546 is about 684.0762557050.

Adding to 320120546 its reverse (645021023), we get a palindrome (965141569).

The spelling of 320120546 in words is "three hundred twenty million, one hundred twenty thousand, five hundred forty-six".