12913841 has 4 divisors (see below), whose sum is σ = 12936000. Its totient is φ = 12891684.

The previous prime is 12913819. The next prime is 12913843. The reversal of 12913841 is 14831921.

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 12913841 - 2¹⁸ = 12651697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12913843) 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, 10181 + ... + 11378.

It is an arithmetic number, because the mean of its divisors is an integer number (3234000).

Almost surely, 2^12913841 is an apocalyptic number.

It is an amenable number.

12913841 is a deficient number, since it is larger than the sum of its proper divisors (22159).

12913841 is an equidigital number, since it uses as much as digits as its factorization.

12913841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22158.

The product of its digits is 1728, while the sum is 29.

The square root of 12913841 is about 3593.5833091776. The cubic root of 12913841 is about 234.6128588734.

The spelling of 12913841 in words is "twelve million, nine hundred thirteen thousand, eight hundred forty-one".