11184021 has 16 divisors (see below), whose sum is σ = 16974720. Its totient is φ = 7273440.

The previous prime is 11183987. The next prime is 11184023. The reversal of 11184021 is 12048111.

It is a de Polignac number, because none of the positive numbers 2^k-11184021 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11183985 and 11184003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11184023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3945 + ... + 6158.

It is an arithmetic number, because the mean of its divisors is an integer number (1060920).

Almost surely, 2^11184021 is an apocalyptic number.

It is an amenable number.

11184021 is a deficient number, since it is larger than the sum of its proper divisors (5790699).

11184021 is a wasteful number, since it uses less digits than its factorization.

11184021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10153 (or 10147 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 11184021 is about 3344.2519342896. The cubic root of 11184021 is about 223.6313358071.

Adding to 11184021 its product of nonzero digits (64), we get a triangular number (11184085 = T₄₇₂₉).

The spelling of 11184021 in words is "eleven million, one hundred eighty-four thousand, twenty-one".