11184981 has 8 divisors (see below), whose sum is σ = 15427680. Its totient is φ = 7199472.

The previous prime is 11184967. The next prime is 11184991. The reversal of 11184981 is 18948111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11184981 - 2⁹ = 11184469 is a prime.

It is a super-2 number, since 2×11184981² = 250207599940722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11184941) 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 7 ways as a sum of consecutive naturals, for example, 64195 + ... + 64368.

It is an arithmetic number, because the mean of its divisors is an integer number (1928460).

Almost surely, 2^11184981 is an apocalyptic number.

It is an amenable number.

11184981 is a deficient number, since it is larger than the sum of its proper divisors (4242699).

11184981 is a wasteful number, since it uses less digits than its factorization.

11184981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128595.

The product of its digits is 2304, while the sum is 33.

The square root of 11184981 is about 3344.3954610662. The cubic root of 11184981 is about 223.6377342197.

The spelling of 11184981 in words is "eleven million, one hundred eighty-four thousand, nine hundred eighty-one".