12581841 has 8 divisors (see below), whose sum is σ = 16964640. Its totient is φ = 8293472.

The previous prime is 12581837. The next prime is 12581879. The reversal of 12581841 is 14818521.

It is a happy number.

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 12581841 - 2² = 12581837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12581799 and 12581808.

It is not an unprimeable number, because it can be changed into a prime (12581341) 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, 23295 + ... + 23828.

It is an arithmetic number, because the mean of its divisors is an integer number (2120580).

Almost surely, 2^12581841 is an apocalyptic number.

It is an amenable number.

12581841 is a deficient number, since it is larger than the sum of its proper divisors (4382799).

12581841 is an equidigital number, since it uses as much as digits as its factorization.

12581841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47215.

The product of its digits is 2560, while the sum is 30.

The square root of 12581841 is about 3547.0890882525. The cubic root of 12581841 is about 232.5848366550.

The spelling of 12581841 in words is "twelve million, five hundred eighty-one thousand, eight hundred forty-one".