111942272 has 32 divisors (see below), whose sum is σ = 240168180. Its totient is φ = 51664896.

The previous prime is 111942269. The next prime is 111942277. The reversal of 111942272 is 272249111.

It can be written as a sum of positive squares in 2 ways, for example, as 94167616 + 17774656 = 9704^2 + 4216^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (111942277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31973 + ... + 35300.

Almost surely, 2^111942272 is an apocalyptic number.

It is an amenable number.

111942272 is an abundant number, since it is smaller than the sum of its proper divisors (128225908).

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

111942272 is an equidigital number, since it uses as much as digits as its factorization.

111942272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67300 (or 67288 counting only the distinct ones).

The product of its digits is 2016, while the sum is 29.

The square root of 111942272 is about 10580.2775010866. The cubic root of 111942272 is about 481.9456215233.

The spelling of 111942272 in words is "one hundred eleven million, nine hundred forty-two thousand, two hundred seventy-two".