111144041 has 8 divisors (see below), whose sum is σ = 114321480. Its totient is φ = 107975808.

The previous prime is 111143999. The next prime is 111144067. The reversal of 111144041 is 140441111.

It can be written as a sum of positive squares in 4 ways, for example, as 56310016 + 54834025 = 7504^2 + 7405^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 111144041 - 2²⁶ = 44035177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111143041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27605 + ... + 31373.

It is an arithmetic number, because the mean of its divisors is an integer number (14290185).

Almost surely, 2^111144041 is an apocalyptic number.

It is an amenable number.

111144041 is a deficient number, since it is larger than the sum of its proper divisors (3177439).

111144041 is an equidigital number, since it uses as much as digits as its factorization.

111144041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4603.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 111144041 is about 10542.4874199593. The cubic root of 111144041 is about 480.7973451962.

Adding to 111144041 its reverse (140441111), we get a palindrome (251585152).

The spelling of 111144041 in words is "one hundred eleven million, one hundred forty-four thousand, forty-one".