111001085 has 8 divisors (see below), whose sum is σ = 143447640. Its totient is φ = 81969984.

The previous prime is 111001081. The next prime is 111001117. The reversal of 111001085 is 580100111.

It can be written as a sum of positive squares in 4 ways, for example, as 4044121 + 106956964 = 2011^2 + 10342^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111001085 - 2² = 111001081 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111001081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 853790 + ... + 853919.

It is an arithmetic number, because the mean of its divisors is an integer number (17930955).

Almost surely, 2^111001085 is an apocalyptic number.

It is an amenable number.

111001085 is a deficient number, since it is larger than the sum of its proper divisors (32446555).

111001085 is a wasteful number, since it uses less digits than its factorization.

111001085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707727.

The product of its (nonzero) digits is 40, while the sum is 17.

The square root of 111001085 is about 10535.7052445482. The cubic root of 111001085 is about 480.5911192503.

Adding to 111001085 its reverse (580100111), we get a palindrome (691101196).

The spelling of 111001085 in words is "one hundred eleven million, one thousand, eighty-five".