12588561 has 8 divisors (see below), whose sum is σ = 18649760. Its totient is φ = 8392356.

The previous prime is 12588559. The next prime is 12588577. The reversal of 12588561 is 16588521.

12588561 is a `hidden beast` number, since 12 + 5 + 88 + 561 = 666.

It is not a de Polignac number, because 12588561 - 2¹ = 12588559 is a prime.

It is a super-3 number, since 3×12588561³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12588461) 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 7 ways as a sum of consecutive naturals, for example, 233095 + ... + 233148.

It is an arithmetic number, because the mean of its divisors is an integer number (2331220).

Almost surely, 2^12588561 is an apocalyptic number.

It is an amenable number.

12588561 is a deficient number, since it is larger than the sum of its proper divisors (6061199).

12588561 is an equidigital number, since it uses as much as digits as its factorization.

12588561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466252 (or 466246 counting only the distinct ones).

The product of its digits is 19200, while the sum is 36.

The square root of 12588561 is about 3548.0362174025. The cubic root of 12588561 is about 232.6262373775.

The spelling of 12588561 in words is "twelve million, five hundred eighty-eight thousand, five hundred sixty-one".