12815326 has 8 divisors (see below), whose sum is σ = 19330920. Its totient is φ = 6371688.

The previous prime is 12815317. The next prime is 12815353. The reversal of 12815326 is 62351821.

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 = 12815294 and 12815303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17541 + ... + 18256.

It is an arithmetic number, because the mean of its divisors is an integer number (2416365).

Almost surely, 2^12815326 is an apocalyptic number.

12815326 is a deficient number, since it is larger than the sum of its proper divisors (6515594).

12815326 is a wasteful number, since it uses less digits than its factorization.

12815326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35978.

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

The square root of 12815326 is about 3579.8499968574. The cubic root of 12815326 is about 234.0147432696.

The spelling of 12815326 in words is "twelve million, eight hundred fifteen thousand, three hundred twenty-six".