320003125 has 24 divisors (see below), whose sum is σ = 430800552. Its totient is φ = 236280000.

The previous prime is 320003069. The next prime is 320003137. The reversal of 320003125 is 521300023.

It can be written as a sum of positive squares in 12 ways, for example, as 282475249 + 37527876 = 16807^2 + 6126^2 .

It is a sliding number, since 320003125 = 3125 + 320000000 and 1/3125 + 1/320000000 = 0.000320003125.

It is not a de Polignac number, because 320003125 - 2¹⁹ = 319478837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320003099 and 320003108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36687 + ... + 44563.

It is an arithmetic number, because the mean of its divisors is an integer number (17950023).

Almost surely, 2^320003125 is an apocalyptic number.

It is an amenable number.

320003125 is a deficient number, since it is larger than the sum of its proper divisors (110797427).

320003125 is an frugal number, since it uses more digits than its factorization.

320003125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7915 (or 7895 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 320003125 is about 17888.6311661904. The cubic root of 320003125 is about 683.9926051946.

Adding to 320003125 its reverse (521300023), we get a palindrome (841303148).

It can be divided in two parts, 32000 and 3125, that multiplied together give a 8-th power (100000000 = 10⁸).

The spelling of 320003125 in words is "three hundred twenty million, three thousand, one hundred twenty-five".