12513826 has 8 divisors (see below), whose sum is σ = 20214684. Its totient is φ = 5775600.

The previous prime is 12513793. The next prime is 12513847. The reversal of 12513826 is 62831521.

It can be written as a sum of positive squares in 2 ways, for example, as 11189025 + 1324801 = 3345^2 + 1151^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12513794 and 12513803.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 240625 + ... + 240676.

Almost surely, 2^12513826 is an apocalyptic number.

12513826 is a deficient number, since it is larger than the sum of its proper divisors (7700858).

12513826 is a wasteful number, since it uses less digits than its factorization.

12513826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481316.

The product of its digits is 2880, while the sum is 28.

The square root of 12513826 is about 3537.4886572256. The cubic root of 12513826 is about 232.1649762953.

The spelling of 12513826 in words is "twelve million, five hundred thirteen thousand, eight hundred twenty-six".