12743825 has 12 divisors (see below), whose sum is σ = 16189068. Its totient is φ = 9945600.

The previous prime is 12743803. The next prime is 12743827. The reversal of 12743825 is 52834721.

It can be written as a sum of positive squares in 6 ways, for example, as 4443664 + 8300161 = 2108^2 + 2881^2 .

It is not a de Polignac number, because 12743825 - 2¹⁰ = 12742801 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12743791 and 12743800.

It is not an unprimeable number, because it can be changed into a prime (12743827) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5192 + ... + 7241.

It is an arithmetic number, because the mean of its divisors is an integer number (1349089).

Almost surely, 2^12743825 is an apocalyptic number.

It is an amenable number.

12743825 is a deficient number, since it is larger than the sum of its proper divisors (3445243).

12743825 is a wasteful number, since it uses less digits than its factorization.

12743825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12484 (or 12479 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 12743825 is about 3569.8494366009. The cubic root of 12743825 is about 233.5787157787.

The spelling of 12743825 in words is "twelve million, seven hundred forty-three thousand, eight hundred twenty-five".