111444141 has 8 divisors (see below), whose sum is σ = 148834720. Its totient is φ = 74174832.

The previous prime is 111444127. The next prime is 111444169. The reversal of 111444141 is 141444111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 111444141 - 2⁶ = 111444077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111444121) 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 in 7 ways as a sum of consecutive naturals, for example, 28150 + ... + 31863.

It is an arithmetic number, because the mean of its divisors is an integer number (18604340).

Almost surely, 2^111444141 is an apocalyptic number.

It is an amenable number.

111444141 is a deficient number, since it is larger than the sum of its proper divisors (37390579).

111444141 is an equidigital number, since it uses as much as digits as its factorization.

111444141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60635.

The product of its digits is 256, while the sum is 21.

The square root of 111444141 is about 10556.7107093071. The cubic root of 111444141 is about 481.2296899058.

Adding to 111444141 its reverse (141444111), we get a palindrome (252888252).

The spelling of 111444141 in words is "one hundred eleven million, four hundred forty-four thousand, one hundred forty-one".