11121504 has 24 divisors (see below), whose sum is σ = 29194200. Its totient is φ = 3707136.

The previous prime is 11121503. The next prime is 11121521. The reversal of 11121504 is 40512111.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121503) 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 3 ways as a sum of consecutive naturals, for example, 57829 + ... + 58020.

It is an arithmetic number, because the mean of its divisors is an integer number (1216425).

Almost surely, 2^11121504 is an apocalyptic number.

It is an amenable number.

11121504 is an abundant number, since it is smaller than the sum of its proper divisors (18072696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11121504 is a wasteful number, since it uses less digits than its factorization.

11121504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115862 (or 115854 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 11121504 is about 3334.8919022961. The cubic root of 11121504 is about 223.2138684359.

Adding to 11121504 its reverse (40512111), we get a palindrome (51633615).

The spelling of 11121504 in words is "eleven million, one hundred twenty-one thousand, five hundred four".