13000641 has 4 divisors (see below), whose sum is σ = 17334192. Its totient is φ = 8667092.

The previous prime is 13000633. The next prime is 13000651. The reversal of 13000641 is 14600031.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14600031 = 3 ⋅4866677.

It is a cyclic number.

It is not a de Polignac number, because 13000641 - 2³ = 13000633 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13000641.

It is not an unprimeable number, because it can be changed into a prime (13000601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2166771 + ... + 2166776.

It is an arithmetic number, because the mean of its divisors is an integer number (4333548).

Almost surely, 2^13000641 is an apocalyptic number.

It is an amenable number.

13000641 is a deficient number, since it is larger than the sum of its proper divisors (4333551).

13000641 is an equidigital number, since it uses as much as digits as its factorization.

13000641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4333550.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 13000641 is about 3605.6401650747. The cubic root of 13000641 is about 235.1373333381.

Adding to 13000641 its reverse (14600031), we get a palindrome (27600672).

The spelling of 13000641 in words is "thirteen million, six hundred forty-one", and thus it is an aban number.