12713125 has 10 divisors (see below), whose sum is σ = 15887102. Its totient is φ = 10170000.

The previous prime is 12713123. The next prime is 12713137. The reversal of 12713125 is 52131721.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 4198401 + 8514724 = 2049^2 + 2918^2 .

It is not a de Polignac number, because 12713125 - 2¹ = 12713123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12713096 and 12713105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12713123) 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 9 ways as a sum of consecutive naturals, for example, 9546 + ... + 10795.

Almost surely, 2^12713125 is an apocalyptic number.

It is an amenable number.

12713125 is a deficient number, since it is larger than the sum of its proper divisors (3173977).

12713125 is an frugal number, since it uses more digits than its factorization.

12713125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20361 (or 20346 counting only the distinct ones).

The product of its digits is 420, while the sum is 22.

The square root of 12713125 is about 3565.5469426162. The cubic root of 12713125 is about 233.3910004859.

Adding to 12713125 its reverse (52131721), we get a palindrome (64844846).

The spelling of 12713125 in words is "twelve million, seven hundred thirteen thousand, one hundred twenty-five".