111288243 has 8 divisors (see below), whose sum is σ = 161873856. Its totient is φ = 67447400.

The previous prime is 111288241. The next prime is 111288271. The reversal of 111288243 is 342882111.

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

It is a cyclic number.

It is not a de Polignac number, because 111288243 - 2¹ = 111288241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111288243.

It is not an unprimeable number, because it can be changed into a prime (111288241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1686153 + ... + 1686218.

It is an arithmetic number, because the mean of its divisors is an integer number (20234232).

Almost surely, 2^111288243 is an apocalyptic number.

111288243 is a deficient number, since it is larger than the sum of its proper divisors (50585613).

111288243 is a wasteful number, since it uses less digits than its factorization.

111288243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3372385.

The product of its digits is 3072, while the sum is 30.

The square root of 111288243 is about 10549.3242911572. The cubic root of 111288243 is about 481.0051895251.

The spelling of 111288243 in words is "one hundred eleven million, two hundred eighty-eight thousand, two hundred forty-three".