320130545 has 8 divisors (see below), whose sum is σ = 439036224. Its totient is φ = 219518064.

The previous prime is 320130539. The next prime is 320130557. The reversal of 320130545 is 545031023.

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

It is a cyclic number.

It is not a de Polignac number, because 320130545 - 2⁴ = 320130529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320130545.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4573259 + ... + 4573328.

It is an arithmetic number, because the mean of its divisors is an integer number (54879528).

Almost surely, 2^320130545 is an apocalyptic number.

320130545 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

320130545 is a deficient number, since it is larger than the sum of its proper divisors (118905679).

320130545 is an equidigital number, since it uses as much as digits as its factorization.

320130545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9146599.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 320130545 is about 17892.1922916114. The cubic root of 320130545 is about 684.0833780295.

Adding to 320130545 its reverse (545031023), we get a palindrome (865161568).

The spelling of 320130545 in words is "three hundred twenty million, one hundred thirty thousand, five hundred forty-five".