111944071 has 2 divisors, whose sum is σ = 111944072. Its totient is φ = 111944070.

The previous prime is 111944039. The next prime is 111944117. The reversal of 111944071 is 170449111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111944071 - 2⁵ = 111944039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111944671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55972035 + 55972036.

It is an arithmetic number, because the mean of its divisors is an integer number (55972036).

Almost surely, 2^111944071 is an apocalyptic number.

111944071 is a deficient number, since it is larger than the sum of its proper divisors (1).

111944071 is an equidigital number, since it uses as much as digits as its factorization.

111944071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 111944071 is about 10580.3625174188. The cubic root of 111944071 is about 481.9482032573.

The spelling of 111944071 in words is "one hundred eleven million, nine hundred forty-four thousand, seventy-one".