11115872 has 24 divisors (see below), whose sum is σ = 21958776. Its totient is φ = 5539072.

The previous prime is 11115869. The next prime is 11115883. The reversal of 11115872 is 27851111.

It is a super-2 number, since 2×11115872² = 247125220640768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 17708 + ... + 18324.

It is an arithmetic number, because the mean of its divisors is an integer number (914949).

Almost surely, 2^11115872 is an apocalyptic number.

It is an amenable number.

11115872 is a deficient number, since it is larger than the sum of its proper divisors (10842904).

11115872 is an equidigital number, since it uses as much as digits as its factorization.

11115872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190 (or 1182 counting only the distinct ones).

The product of its digits is 560, while the sum is 26.

The square root of 11115872 is about 3334.0473901851. The cubic root of 11115872 is about 223.1761831021.

Adding to 11115872 its reverse (27851111), we get a palindrome (38966983).

The spelling of 11115872 in words is "eleven million, one hundred fifteen thousand, eight hundred seventy-two".