111102145 has 16 divisors (see below), whose sum is σ = 166220928. Its totient is φ = 69258240.

The previous prime is 111102143. The next prime is 111102163. The reversal of 111102145 is 541201111.

It is not a de Polignac number, because 111102145 - 2¹ = 111102143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111102143) 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, 143904 + ... + 144673.

It is an arithmetic number, because the mean of its divisors is an integer number (10388808).

Almost surely, 2^111102145 is an apocalyptic number.

It is an amenable number.

111102145 is a deficient number, since it is larger than the sum of its proper divisors (55118783).

111102145 is a wasteful number, since it uses less digits than its factorization.

111102145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288600.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 111102145 is about 10540.5002253214. The cubic root of 111102145 is about 480.7369250514.

Adding to 111102145 its reverse (541201111), we get a palindrome (652303256).

It can be divided in two parts, 11110214 and 5, that multiplied together give a triangular number (55551070 = T₁₀₅₄₀).

The spelling of 111102145 in words is "one hundred eleven million, one hundred two thousand, one hundred forty-five".