12815026 has 16 divisors (see below), whose sum is σ = 22014720. Its totient is φ = 5480640.

The previous prime is 12815017. The next prime is 12815027. The reversal of 12815026 is 62051821.

It is not an unprimeable number, because it can be changed into a prime (12815027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11815 + ... + 12853.

It is an arithmetic number, because the mean of its divisors is an integer number (1375920).

Almost surely, 2^12815026 is an apocalyptic number.

12815026 is a deficient number, since it is larger than the sum of its proper divisors (9199694).

12815026 is a wasteful number, since it uses less digits than its factorization.

12815026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1929.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 12815026 is about 3579.8080954152. The cubic root of 12815026 is about 234.0129172016.

Adding to 12815026 its reverse (62051821), we get a palindrome (74866847).

The spelling of 12815026 in words is "twelve million, eight hundred fifteen thousand, twenty-six".