13561304 has 8 divisors (see below), whose sum is σ = 25427460. Its totient is φ = 6780648.

The previous prime is 13561271. The next prime is 13561309. The reversal of 13561304 is 40316531.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 13561304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13561309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 847574 + ... + 847589.

Almost surely, 2^13561304 is an apocalyptic number.

It is an amenable number.

13561304 is a deficient number, since it is larger than the sum of its proper divisors (11866156).

13561304 is a wasteful number, since it uses less digits than its factorization.

13561304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1695169 (or 1695165 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 13561304 is about 3682.5675825435. The cubic root of 13561304 is about 238.4700359522.

Adding to 13561304 its reverse (40316531), we get a palindrome (53877835).

The spelling of 13561304 in words is "thirteen million, five hundred sixty-one thousand, three hundred four".