12875005 has 24 divisors (see below), whose sum is σ = 18299736. Its totient is φ = 8638080.

The previous prime is 12875003. The next prime is 12875021. The reversal of 12875005 is 50057821.

It can be written as a sum of positive squares in 4 ways, for example, as 407044 + 12467961 = 638^2 + 3531^2 .

It is not a de Polignac number, because 12875005 - 2¹ = 12875003 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12875003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7047 + ... + 8683.

It is an arithmetic number, because the mean of its divisors is an integer number (762489).

Almost surely, 2^12875005 is an apocalyptic number.

It is an amenable number.

12875005 is a deficient number, since it is larger than the sum of its proper divisors (5424731).

12875005 is a wasteful number, since it uses less digits than its factorization.

12875005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1677 (or 1666 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 12875005 is about 3588.1757203348. The cubic root of 12875005 is about 234.3774377228.

The spelling of 12875005 in words is "twelve million, eight hundred seventy-five thousand, five".