12805241 has 4 divisors (see below), whose sum is σ = 12996432. Its totient is φ = 12614052.

The previous prime is 12805237. The next prime is 12805279. The reversal of 12805241 is 14250821.

12805241 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12805241 - 2² = 12805237 is a prime.

It is a super-3 number, since 3×12805241³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12805141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95495 + ... + 95628.

It is an arithmetic number, because the mean of its divisors is an integer number (3249108).

Almost surely, 2^12805241 is an apocalyptic number.

It is an amenable number.

12805241 is a deficient number, since it is larger than the sum of its proper divisors (191191).

12805241 is an equidigital number, since it uses as much as digits as its factorization.

12805241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191190.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 12805241 is about 3578.4411410557. The cubic root of 12805241 is about 233.9533413192.

The spelling of 12805241 in words is "twelve million, eight hundred five thousand, two hundred forty-one".