111540445 has 8 divisors (see below), whose sum is σ = 134055000. Its totient is φ = 89094720.

The previous prime is 111540433. The next prime is 111540487. The reversal of 111540445 is 544045111.

It can be written as a sum of positive squares in 4 ways, for example, as 50168889 + 61371556 = 7083^2 + 7834^2 .

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

It is not a de Polignac number, because 111540445 - 2⁵ = 111540413 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 13570 + ... + 20179.

It is an arithmetic number, because the mean of its divisors is an integer number (16756875).

Almost surely, 2^111540445 is an apocalyptic number.

It is an amenable number.

111540445 is a deficient number, since it is larger than the sum of its proper divisors (22514555).

111540445 is an equidigital number, since it uses as much as digits as its factorization.

111540445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34415.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 111540445 is about 10561.2709935878. The cubic root of 111540445 is about 481.3682675544.

Adding to 111540445 its reverse (544045111), we get a palindrome (655585556).

The spelling of 111540445 in words is "one hundred eleven million, five hundred forty thousand, four hundred forty-five".