320045125 has 8 divisors (see below), whose sum is σ = 399416472. Its totient is φ = 256036000.

The previous prime is 320045113. The next prime is 320045149. The reversal of 320045125 is 521540023.

It can be written as a sum of positive squares in 4 ways, for example, as 8946081 + 311099044 = 2991^2 + 17638^2 .

It is not a de Polignac number, because 320045125 - 2¹¹ = 320043077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320045096 and 320045105.

It is a congruent number.

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, 1280056 + ... + 1280305.

It is an arithmetic number, because the mean of its divisors is an integer number (49927059).

Almost surely, 2^320045125 is an apocalyptic number.

It is an amenable number.

320045125 is a deficient number, since it is larger than the sum of its proper divisors (79371347).

320045125 is an equidigital number, since it uses as much as digits as its factorization.

320045125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560376 (or 2560366 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 320045125 is about 17889.8050576299. The cubic root of 320045125 is about 684.0225282698.

Adding to 320045125 its reverse (521540023), we get a palindrome (841585148).

It can be divided in two parts, 320045 and 125, that multiplied together give a square (40005625 = 6325²).

The spelling of 320045125 in words is "three hundred twenty million, forty-five thousand, one hundred twenty-five".