11561104 has 20 divisors (see below), whose sum is σ = 22518400. Its totient is φ = 5749920.

The previous prime is 11561089. The next prime is 11561117. The reversal of 11561104 is 40116511.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1369 + ... + 4999.

It is an arithmetic number, because the mean of its divisors is an integer number (1125920).

Almost surely, 2^11561104 is an apocalyptic number.

It is an amenable number.

11561104 is a deficient number, since it is larger than the sum of its proper divisors (10957296).

11561104 is a wasteful number, since it uses less digits than its factorization.

11561104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3838 (or 3832 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 11561104 is about 3400.1623490651. The cubic root of 11561104 is about 226.1169415937.

Adding to 11561104 its reverse (40116511), we get a palindrome (51677615).

The spelling of 11561104 in words is "eleven million, five hundred sixty-one thousand, one hundred four".