12882561 has 8 divisors (see below), whose sum is σ = 17197440. Its totient is φ = 8578032.

The previous prime is 12882539. The next prime is 12882581. The reversal of 12882561 is 16528821.

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

It is not a de Polignac number, because 12882561 - 2⁷ = 12882433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12882581) 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, 1051 + ... + 5183.

It is an arithmetic number, because the mean of its divisors is an integer number (2149680).

Almost surely, 2^12882561 is an apocalyptic number.

It is an amenable number.

12882561 is a deficient number, since it is larger than the sum of its proper divisors (4314879).

12882561 is a wasteful number, since it uses less digits than its factorization.

12882561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5175.

The product of its digits is 7680, while the sum is 33.

The square root of 12882561 is about 3589.2284686266. The cubic root of 12882561 is about 234.4232787300.

The spelling of 12882561 in words is "twelve million, eight hundred eighty-two thousand, five hundred sixty-one".