12528589 has 4 divisors (see below), whose sum is σ = 12705120. Its totient is φ = 12352060.

The previous prime is 12528587. The next prime is 12528613. The reversal of 12528589 is 98582521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98582521 = 6737 ⋅14633.

It is a cyclic number.

It is not a de Polignac number, because 12528589 - 2¹ = 12528587 is a prime.

It is a Smith number, since the sum of its digits (40) 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12528587) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88159 + ... + 88300.

It is an arithmetic number, because the mean of its divisors is an integer number (3176280).

Almost surely, 2^12528589 is an apocalyptic number.

It is an amenable number.

12528589 is a deficient number, since it is larger than the sum of its proper divisors (176531).

12528589 is an equidigital number, since it uses as much as digits as its factorization.

12528589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176530.

The product of its digits is 57600, while the sum is 40.

The square root of 12528589 is about 3539.5746919651. The cubic root of 12528589 is about 232.2562381417.

The spelling of 12528589 in words is "twelve million, five hundred twenty-eight thousand, five hundred eighty-nine".