111555344 has 20 divisors (see below), whose sum is σ = 223592460. Its totient is φ = 53854080.

The previous prime is 111555341. The next prime is 111555349. The reversal of 111555344 is 443555111.

It can be written as a sum of positive squares in 2 ways, for example, as 84640000 + 26915344 = 9200^2 + 5188^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (111555341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119747 + ... + 120674.

It is an arithmetic number, because the mean of its divisors is an integer number (11179623).

Almost surely, 2^111555344 is an apocalyptic number.

It is an amenable number.

111555344 is an abundant number, since it is smaller than the sum of its proper divisors (112037116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111555344 is a wasteful number, since it uses less digits than its factorization.

111555344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240458 (or 240452 counting only the distinct ones).

The product of its digits is 6000, while the sum is 29.

The square root of 111555344 is about 10561.9763302140. The cubic root of 111555344 is about 481.3896995008.

The spelling of 111555344 in words is "one hundred eleven million, five hundred fifty-five thousand, three hundred forty-four".