12805541 has 8 divisors (see below), whose sum is σ = 14657664. Its totient is φ = 10959120.

The previous prime is 12805523. The next prime is 12805543. The reversal of 12805541 is 14550821.

12805541 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 12805541 - 2⁶ = 12805477 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12805541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12805543) 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, 5951 + ... + 7811.

It is an arithmetic number, because the mean of its divisors is an integer number (1832208).

Almost surely, 2^12805541 is an apocalyptic number.

It is an amenable number.

12805541 is a deficient number, since it is larger than the sum of its proper divisors (1852123).

12805541 is an equidigital number, since it uses as much as digits as its factorization.

12805541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2851.

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 12805541 is about 3578.4830585040. The cubic root of 12805541 is about 233.9551683174.

The spelling of 12805541 in words is "twelve million, eight hundred five thousand, five hundred forty-one".