12654561 has 8 divisors (see below), whose sum is σ = 16889184. Its totient is φ = 8428160.

The previous prime is 12654557. The next prime is 12654563. The reversal of 12654561 is 16545621.

12654561 is nontrivially palindromic in base 11.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12654561 - 2² = 12654557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12654563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5041 + ... + 7121.

It is an arithmetic number, because the mean of its divisors is an integer number (2111148).

Almost surely, 2^12654561 is an apocalyptic number.

It is an amenable number.

12654561 is a deficient number, since it is larger than the sum of its proper divisors (4234623).

12654561 is a wasteful number, since it uses less digits than its factorization.

12654561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4111.

The product of its digits is 7200, while the sum is 30.

The square root of 12654561 is about 3557.3249781261. The cubic root of 12654561 is about 233.0320708371.

It can be divided in two parts, 1 and 2654561, that added together give a palindrome (2654562).

The spelling of 12654561 in words is "twelve million, six hundred fifty-four thousand, five hundred sixty-one".