12546561 has 8 divisors (see below), whose sum is σ = 17712864. Its totient is φ = 7872320.

The previous prime is 12546559. The next prime is 12546571. The reversal of 12546561 is 16564521.

12546561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12546561 - 2¹ = 12546559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12546571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122955 + ... + 123056.

It is an arithmetic number, because the mean of its divisors is an integer number (2214108).

Almost surely, 2^12546561 is an apocalyptic number.

It is an amenable number.

12546561 is a deficient number, since it is larger than the sum of its proper divisors (5166303).

12546561 is a wasteful number, since it uses less digits than its factorization.

12546561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246031.

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

The square root of 12546561 is about 3542.1125052714. The cubic root of 12546561 is about 232.3672406606.

The spelling of 12546561 in words is "twelve million, five hundred forty-six thousand, five hundred sixty-one".