12804581 has 8 divisors (see below), whose sum is σ = 13269504. Its totient is φ = 12342960.

The previous prime is 12804569. The next prime is 12804599. The reversal of 12804581 is 18540821.

12804581 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 not a de Polignac number, because 12804581 - 2¹⁸ = 12542437 is a prime.

It is a super-2 number, since 2×12804581² = 327914589171122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12804551) 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, 9176 + ... + 10478.

It is an arithmetic number, because the mean of its divisors is an integer number (1658688).

Almost surely, 2^12804581 is an apocalyptic number.

It is an amenable number.

12804581 is a deficient number, since it is larger than the sum of its proper divisors (464923).

12804581 is a wasteful number, since it uses less digits than its factorization.

12804581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1651.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 12804581 is about 3578.3489209411. The cubic root of 12804581 is about 233.9493218229.

The spelling of 12804581 in words is "twelve million, eight hundred four thousand, five hundred eighty-one".