111227643 has 6 divisors (see below), whose sum is σ = 160662164. Its totient is φ = 74151756.

The previous prime is 111227639. The next prime is 111227663. The reversal of 111227643 is 346722111.

111227643 is a `hidden beast` number, since 1 + 1 + 12 + 2 + 7 + 643 = 666.

It is not a de Polignac number, because 111227643 - 2² = 111227639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111227603) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6179305 + ... + 6179322.

Almost surely, 2^111227643 is an apocalyptic number.

111227643 is a deficient number, since it is larger than the sum of its proper divisors (49434521).

111227643 is a wasteful number, since it uses less digits than its factorization.

111227643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12358633 (or 12358630 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 111227643 is about 10546.4516781712. The cubic root of 111227643 is about 480.9178661142.

Adding to 111227643 its reverse (346722111), we get a palindrome (457949754).

The spelling of 111227643 in words is "one hundred eleven million, two hundred twenty-seven thousand, six hundred forty-three".