111886427 has 2 divisors, whose sum is σ = 111886428. Its totient is φ = 111886426.

The previous prime is 111886403. The next prime is 111886477. The reversal of 111886427 is 724688111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111886427 - 2⁶ = 111886363 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (111886477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55943213 + 55943214.

It is an arithmetic number, because the mean of its divisors is an integer number (55943214).

Almost surely, 2^111886427 is an apocalyptic number.

111886427 is a deficient number, since it is larger than the sum of its proper divisors (1).

111886427 is an equidigital number, since it uses as much as digits as its factorization.

111886427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21504, while the sum is 38.

The square root of 111886427 is about 10577.6380633864. The cubic root of 111886427 is about 481.8654649402.

The spelling of 111886427 in words is "one hundred eleven million, eight hundred eighty-six thousand, four hundred twenty-seven".