111344425 has 6 divisors (see below), whose sum is σ = 138067118. Its totient is φ = 89075520.

The previous prime is 111344413. The next prime is 111344447. The reversal of 111344425 is 524443111.

It can be written as a sum of positive squares in 3 ways, for example, as 5583769 + 105760656 = 2363^2 + 10284^2 .

It is not a de Polignac number, because 111344425 - 2⁵ = 111344393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 4453777 = 111344425 / (1 + 1 + 1 + 3 + 4 + 4 + 4 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111344425.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2226864 + ... + 2226913.

Almost surely, 2^111344425 is an apocalyptic number.

It is an amenable number.

111344425 is a deficient number, since it is larger than the sum of its proper divisors (26722693).

111344425 is an equidigital number, since it uses as much as digits as its factorization.

111344425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4453787 (or 4453782 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 111344425 is about 10551.9867797491. The cubic root of 111344425 is about 481.0861183713.

Adding to 111344425 its reverse (524443111), we get a palindrome (635787536).

The spelling of 111344425 in words is "one hundred eleven million, three hundred forty-four thousand, four hundred twenty-five".