12815038 has 4 divisors (see below), whose sum is σ = 19222560. Its totient is φ = 6407518.

The previous prime is 12815027. The next prime is 12815041. The reversal of 12815038 is 83051821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83051821 = 31 ⋅2679091.

It is a junction number, because it is equal to n+sod(n) for n = 12814997 and 12815015.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 3203758 + ... + 3203761.

It is an arithmetic number, because the mean of its divisors is an integer number (4805640).

Almost surely, 2^12815038 is an apocalyptic number.

12815038 is a deficient number, since it is larger than the sum of its proper divisors (6407522).

12815038 is an equidigital number, since it uses as much as digits as its factorization.

12815038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6407521.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 12815038 is about 3579.8097714823. The cubic root of 12815038 is about 234.0129902448.

Adding to 12815038 its reverse (83051821), we get a palindrome (95866859).

The spelling of 12815038 in words is "twelve million, eight hundred fifteen thousand, thirty-eight".