12845587 has 4 divisors (see below), whose sum is σ = 13158936. Its totient is φ = 12532240.

The previous prime is 12845561. The next prime is 12845597. The reversal of 12845587 is 78554821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78554821 = 23 ⋅3415427.

It is a cyclic number.

It is not a de Polignac number, because 12845587 - 2¹¹ = 12843539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12845537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156613 + ... + 156694.

It is an arithmetic number, because the mean of its divisors is an integer number (3289734).

Almost surely, 2^12845587 is an apocalyptic number.

12845587 is a deficient number, since it is larger than the sum of its proper divisors (313349).

12845587 is an equidigital number, since it uses as much as digits as its factorization.

12845587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313348.

The product of its digits is 89600, while the sum is 40.

The square root of 12845587 is about 3584.0740784755. The cubic root of 12845587 is about 234.1987925231.

The spelling of 12845587 in words is "twelve million, eight hundred forty-five thousand, five hundred eighty-seven".