13104661 has 12 divisors (see below), whose sum is σ = 14289024. Its totient is φ = 12004200.

The previous prime is 13104647. The next prime is 13104673. The reversal of 13104661 is 16640131.

It is a happy number.

It is not a de Polignac number, because 13104661 - 2²¹ = 11007509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13104631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10606 + ... + 11776.

It is an arithmetic number, because the mean of its divisors is an integer number (1190752).

Almost surely, 2^13104661 is an apocalyptic number.

It is an amenable number.

13104661 is a deficient number, since it is larger than the sum of its proper divisors (1184363).

13104661 is a wasteful number, since it uses less digits than its factorization.

13104661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240 (or 1221 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 13104661 is about 3620.0360495443. The cubic root of 13104661 is about 235.7627907177.

Adding to 13104661 its reverse (16640131), we get a palindrome (29744792).

The spelling of 13104661 in words is "thirteen million, one hundred four thousand, six hundred sixty-one".