111227845 has 16 divisors (see below), whose sum is σ = 138636288. Its totient is φ = 85576320.

The previous prime is 111227833. The next prime is 111227849. The reversal of 111227845 is 548722111.

It is not a de Polignac number, because 111227845 - 2¹⁷ = 111096773 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111227849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23737 + ... + 28033.

It is an arithmetic number, because the mean of its divisors is an integer number (8664768).

Almost surely, 2^111227845 is an apocalyptic number.

It is an amenable number.

111227845 is a deficient number, since it is larger than the sum of its proper divisors (27408443).

111227845 is a wasteful number, since it uses less digits than its factorization.

111227845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4500.

The product of its digits is 4480, while the sum is 31.

The square root of 111227845 is about 10546.4612548475. The cubic root of 111227845 is about 480.9181572449.

Adding to 111227845 its reverse (548722111), we get a palindrome (659949956).

The spelling of 111227845 in words is "one hundred eleven million, two hundred twenty-seven thousand, eight hundred forty-five".