12873515 has 4 divisors (see below), whose sum is σ = 15448224. Its totient is φ = 10298808.

The previous prime is 12873499. The next prime is 12873517. The reversal of 12873515 is 51537821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51537821 = 293 ⋅175897.

It is a cyclic number.

It is not a de Polignac number, because 12873515 - 2⁴ = 12873499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12873517) by changing a digit.

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, 1287347 + ... + 1287356.

It is an arithmetic number, because the mean of its divisors is an integer number (3862056).

Almost surely, 2^12873515 is an apocalyptic number.

12873515 is a deficient number, since it is larger than the sum of its proper divisors (2574709).

12873515 is an equidigital number, since it uses as much as digits as its factorization.

12873515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574708.

The product of its digits is 8400, while the sum is 32.

The square root of 12873515 is about 3587.9680879294. The cubic root of 12873515 is about 234.3683960213.

The spelling of 12873515 in words is "twelve million, eight hundred seventy-three thousand, five hundred fifteen".