1111272172 has 12 divisors (see below), whose sum is σ = 1945011096. Its totient is φ = 555554720.

The previous prime is 1111272161. The next prime is 1111272181. The reversal of 1111272172 is 2712721111.

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, 18723 + ... + 50725.

It is an arithmetic number, because the mean of its divisors is an integer number (162084258).

Almost surely, 2^1111272172 is an apocalyptic number.

It is an amenable number.

1111272172 is a deficient number, since it is larger than the sum of its proper divisors (833738924).

1111272172 is a wasteful number, since it uses less digits than its factorization.

1111272172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40688 (or 40686 counting only the distinct ones).

The product of its digits is 392, while the sum is 25.

The square root of 1111272172 is about 33335.7491591235. The cubic root of 1111272172 is about 1035.7942115963.

Adding to 1111272172 its reverse (2712721111), we get a palindrome (3823993283).

The spelling of 1111272172 in words is "one billion, one hundred eleven million, two hundred seventy-two thousand, one hundred seventy-two".