111344445 has 12 divisors (see below), whose sum is σ = 192997116. Its totient is φ = 59383680.

The previous prime is 111344413. The next prime is 111344447. The reversal of 111344445 is 544443111.

It can be written as a sum of positive squares in 2 ways, for example, as 35497764 + 75846681 = 5958^2 + 8709^2 .

It is not a de Polignac number, because 111344445 - 2⁵ = 111344413 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111344447) 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 11 ways as a sum of consecutive naturals, for example, 1237116 + ... + 1237205.

It is an arithmetic number, because the mean of its divisors is an integer number (16083093).

Almost surely, 2^111344445 is an apocalyptic number.

111344445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111344445 is a deficient number, since it is larger than the sum of its proper divisors (81652671).

111344445 is a wasteful number, since it uses less digits than its factorization.

111344445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474332 (or 2474329 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 111344445 is about 10551.9877274379. The cubic root of 111344445 is about 481.0861471760.

Adding to 111344445 its reverse (544443111), we get a palindrome (655787556).

The spelling of 111344445 in words is "one hundred eleven million, three hundred forty-four thousand, four hundred forty-five".