111444 has 24 divisors (see below), whose sum is σ = 268128. Its totient is φ = 36000.

The previous prime is 111443. The next prime is 111467. The reversal of 111444 is 444111.

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

It is an Ulam number.

It is a plaindrome in base 10.

It is a zygodrome in base 10.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 111444.

It is not an unprimeable number, because it can be changed into a prime (111443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319 + ... + 569.

It is an arithmetic number, because the mean of its divisors is an integer number (11172).

2¹¹¹⁴⁴⁴ is an apocalyptic number.

It is an amenable number.

111444 is an abundant number, since it is smaller than the sum of its proper divisors (156684).

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

111444 is a wasteful number, since it uses less digits than its factorization.

111444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295 (or 293 counting only the distinct ones).

The product of its digits is 64, while the sum is 15.

The square root of 111444 is about 333.8322932252. The cubic root of 111444 is about 48.1229486954.

Adding to 111444 its reverse (444111), we get a palindrome (555555).

It can be divided in two parts, 111 and 444, that multiplied together give a square (49284 = 222²).

The spelling of 111444 in words is "one hundred eleven thousand, four hundred forty-four", and thus it is an iban number.