111441424 has 10 divisors (see below), whose sum is σ = 215917790. Its totient is φ = 55720704.

The previous prime is 111441401. The next prime is 111441427. The reversal of 111441424 is 424144111.

It can be written as a sum of positive squares in only one way, i.e., 110923024 + 518400 = 10532^2 + 720^2 .

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 111441395 and 111441404.

It is not an unprimeable number, because it can be changed into a prime (111441427) 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 as a sum of consecutive naturals, namely, 3482529 + ... + 3482560.

It is an arithmetic number, because the mean of its divisors is an integer number (21591779).

Almost surely, 2^111441424 is an apocalyptic number.

It is an amenable number.

111441424 is a deficient number, since it is larger than the sum of its proper divisors (104476366).

111441424 is an equidigital number, since it uses as much as digits as its factorization.

111441424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6965097 (or 6965091 counting only the distinct ones).

The product of its digits is 512, while the sum is 22.

The square root of 111441424 is about 10556.5820226056. The cubic root of 111441424 is about 481.2257790925.

Adding to 111441424 its reverse (424144111), we get a palindrome (535585535).

The spelling of 111441424 in words is "one hundred eleven million, four hundred forty-one thousand, four hundred twenty-four".