12656041 has 8 divisors (see below), whose sum is σ = 13505184. Its totient is φ = 11818560.

The previous prime is 12656023. The next prime is 12656047. The reversal of 12656041 is 14065621.

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 12656041 - 2¹³ = 12647849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12655997 and 12656015.

It is not an unprimeable number, because it can be changed into a prime (12656047) 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, 615 + ... + 5068.

It is an arithmetic number, because the mean of its divisors is an integer number (1688148).

Almost surely, 2^12656041 is an apocalyptic number.

It is an amenable number.

12656041 is a deficient number, since it is larger than the sum of its proper divisors (849143).

12656041 is a wasteful number, since it uses less digits than its factorization.

12656041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5831.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 12656041 is about 3557.5329935223. The cubic root of 12656041 is about 233.0411551511.

The spelling of 12656041 in words is "twelve million, six hundred fifty-six thousand, forty-one".