111928045 has 4 divisors (see below), whose sum is σ = 134313660. Its totient is φ = 89542432.

The previous prime is 111928039. The next prime is 111928049. The reversal of 111928045 is 540829111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 74338884 + 37589161 = 8622^2 + 6131^2 .

It is a cyclic number.

It is not a de Polignac number, because 111928045 - 2⁵ = 111928013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111927998 and 111928016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111928049) 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 3 ways as a sum of consecutive naturals, for example, 11192800 + ... + 11192809.

It is an arithmetic number, because the mean of its divisors is an integer number (33578415).

Almost surely, 2^111928045 is an apocalyptic number.

It is an amenable number.

111928045 is a deficient number, since it is larger than the sum of its proper divisors (22385615).

111928045 is an equidigital number, since it uses as much as digits as its factorization.

111928045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22385614.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 111928045 is about 10579.6051438605. The cubic root of 111928045 is about 481.9252034669.

The spelling of 111928045 in words is "one hundred eleven million, nine hundred twenty-eight thousand, forty-five".