12873511 has 4 divisors (see below), whose sum is σ = 14712592. Its totient is φ = 11034432.

The previous prime is 12873499. The next prime is 12873517. The reversal of 12873511 is 11537821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12873511 - 2⁹ = 12872999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12873511.

It is a congruent 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, 919530 + ... + 919543.

It is an arithmetic number, because the mean of its divisors is an integer number (3678148).

Almost surely, 2^12873511 is an apocalyptic number.

12873511 is a deficient number, since it is larger than the sum of its proper divisors (1839081).

12873511 is an equidigital number, since it uses as much as digits as its factorization.

12873511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1839080.

The product of its digits is 1680, while the sum is 28.

The square root of 12873511 is about 3587.9675305108. The cubic root of 12873511 is about 234.3683717474.

The spelling of 12873511 in words is "twelve million, eight hundred seventy-three thousand, five hundred eleven".