111315444 has 12 divisors (see below), whose sum is σ = 259736064. Its totient is φ = 37105144.

The previous prime is 111315431. The next prime is 111315461. The reversal of 111315444 is 444513111.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×111315444² = 24782256145834272, 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4638132 + ... + 4638155.

It is an arithmetic number, because the mean of its divisors is an integer number (21644672).

Almost surely, 2^111315444 is an apocalyptic number.

It is an amenable number.

111315444 is an abundant number, since it is smaller than the sum of its proper divisors (148420620).

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

111315444 is a wasteful number, since it uses less digits than its factorization.

111315444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9276294 (or 9276292 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 111315444 is about 10550.6134418810. The cubic root of 111315444 is about 481.0443753246.

Adding to 111315444 its reverse (444513111), we get a palindrome (555828555).

The spelling of 111315444 in words is "one hundred eleven million, three hundred fifteen thousand, four hundred forty-four".