111442717 has 2 divisors, whose sum is σ = 111442718. Its totient is φ = 111442716.

The previous prime is 111442691. The next prime is 111442741. The reversal of 111442717 is 717244111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76230361 + 35212356 = 8731^2 + 5934^2 .

It is a cyclic number.

It is not a de Polignac number, because 111442717 - 2⁷ = 111442589 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111442417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55721358 + 55721359.

It is an arithmetic number, because the mean of its divisors is an integer number (55721359).

Almost surely, 2^111442717 is an apocalyptic number.

It is an amenable number.

111442717 is a deficient number, since it is larger than the sum of its proper divisors (1).

111442717 is an equidigital number, since it uses as much as digits as its factorization.

111442717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1568, while the sum is 28.

The square root of 111442717 is about 10556.6432638410. The cubic root of 111442717 is about 481.2276402272.

Adding to 111442717 its reverse (717244111), we get a palindrome (828686828).

It can be divided in two parts, 11144 and 2717, that added together give a triangular number (13861 = T₁₆₆).

The spelling of 111442717 in words is "one hundred eleven million, four hundred forty-two thousand, seven hundred seventeen".