111040172 has 12 divisors (see below), whose sum is σ = 197221080. Its totient is φ = 54691296.

The previous prime is 111040169. The next prime is 111040187. The reversal of 111040172 is 271040111.

It is a self number, because there is not a number n which added to its sum of digits gives 111040172.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206897 + ... + 207432.

It is an arithmetic number, because the mean of its divisors is an integer number (16435090).

Almost surely, 2^111040172 is an apocalyptic number.

It is an amenable number.

111040172 is a deficient number, since it is larger than the sum of its proper divisors (86180908).

111040172 is a wasteful number, since it uses less digits than its factorization.

111040172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414400 (or 414398 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 111040172 is about 10537.5600591408. The cubic root of 111040172 is about 480.6475230851.

Adding to 111040172 its reverse (271040111), we get a palindrome (382080283).

The spelling of 111040172 in words is "one hundred eleven million, forty thousand, one hundred seventy-two".