111228736 has 112 divisors (see below), whose sum is σ = 250911360. Its totient is φ = 48660480.

The previous prime is 111228721. The next prime is 111228751. The reversal of 111228736 is 637822111.

It is an interprime number because it is at equal distance from previous prime (111228721) and next prime (111228751).

Its product of digits (4032) is a multiple of the sum of its prime factors (192).

It is a junction number, because it is equal to n+sod(n) for n = 111228698 and 111228707.

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 15 ways as a sum of consecutive naturals, for example, 1146640 + ... + 1146736.

It is an arithmetic number, because the mean of its divisors is an integer number (2240280).

Almost surely, 2^111228736 is an apocalyptic number.

111228736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111228736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125455680).

111228736 is an abundant number, since it is smaller than the sum of its proper divisors (139682624).

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

111228736 is a wasteful number, since it uses less digits than its factorization.

111228736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192 (or 182 counting only the distinct ones).

The product of its digits is 4032, while the sum is 31.

The square root of 111228736 is about 10546.5034964200. The cubic root of 111228736 is about 480.9194413865.

The spelling of 111228736 in words is "one hundred eleven million, two hundred twenty-eight thousand, seven hundred thirty-six".