12548561 has 12 divisors (see below), whose sum is σ = 13336752. Its totient is φ = 11799984.

The previous prime is 12548551. The next prime is 12548563. The reversal of 12548561 is 16584521.

It is not a de Polignac number, because 12548561 - 2²² = 8354257 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12548563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35990 + ... + 36336.

It is an arithmetic number, because the mean of its divisors is an integer number (1111396).

Almost surely, 2^12548561 is an apocalyptic number.

It is an amenable number.

12548561 is a deficient number, since it is larger than the sum of its proper divisors (788191).

12548561 is an equidigital number, since it uses as much as digits as its factorization.

12548561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448 (or 419 counting only the distinct ones).

The product of its digits is 9600, while the sum is 32.

The square root of 12548561 is about 3542.3948114235. The cubic root of 12548561 is about 232.3795869332.

The spelling of 12548561 in words is "twelve million, five hundred forty-eight thousand, five hundred sixty-one".