13009641 has 16 divisors (see below), whose sum is σ = 18604800. Its totient is φ = 8057088.

The previous prime is 13009639. The next prime is 13009663. The reversal of 13009641 is 14690031.

It is not a de Polignac number, because 13009641 - 2¹ = 13009639 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13009691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2415 + ... + 5643.

It is an arithmetic number, because the mean of its divisors is an integer number (1162800).

Almost surely, 2^13009641 is an apocalyptic number.

It is an amenable number.

13009641 is a deficient number, since it is larger than the sum of its proper divisors (5595159).

13009641 is a wasteful number, since it uses less digits than its factorization.

13009641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3328.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 13009641 is about 3606.8879938251. The cubic root of 13009641 is about 235.1915806082.

Adding to 13009641 its reverse (14690031), we get a palindrome (27699672).

The spelling of 13009641 in words is "thirteen million, nine thousand, six hundred forty-one".