13328125 has 14 divisors (see below), whose sum is σ = 16679474. Its totient is φ = 10650000.

The previous prime is 13328089. The next prime is 13328129. The reversal of 13328125 is 52182331.

It can be written as a sum of positive squares in 7 ways, for example, as 12131289 + 1196836 = 3483^2 + 1094^2 .

It is a de Polignac number, because none of the positive numbers 2^k-13328125 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 13328125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13328129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 15199 + ... + 16051.

It is an arithmetic number, because the mean of its divisors is an integer number (1191391).

Almost surely, 2^13328125 is an apocalyptic number.

It is an amenable number.

13328125 is a deficient number, since it is larger than the sum of its proper divisors (3351349).

13328125 is an frugal number, since it uses more digits than its factorization.

13328125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883 (or 858 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 13328125 is about 3650.7704666276. The cubic root of 13328125 is about 237.0953404682.

The spelling of 13328125 in words is "thirteen million, three hundred twenty-eight thousand, one hundred twenty-five".