12875305 has 4 divisors (see below), whose sum is σ = 15450372. Its totient is φ = 10300240.

The previous prime is 12875287. The next prime is 12875327. The reversal of 12875305 is 50357821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50357821 = 47 ⋅1071443.

It can be written as a sum of positive squares in 2 ways, for example, as 9018009 + 3857296 = 3003^2 + 1964^2 .

It is not a de Polignac number, because 12875305 - 2⁹ = 12874793 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1287526 + ... + 1287535.

It is an arithmetic number, because the mean of its divisors is an integer number (3862593).

Almost surely, 2^12875305 is an apocalyptic number.

It is an amenable number.

12875305 is a deficient number, since it is larger than the sum of its proper divisors (2575067).

12875305 is an equidigital number, since it uses as much as digits as its factorization.

12875305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2575066.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 12875305 is about 3588.2175240640. The cubic root of 12875305 is about 234.3792581152.

The spelling of 12875305 in words is "twelve million, eight hundred seventy-five thousand, three hundred five".