85188111 has 8 divisors (see below), whose sum is σ = 116001024. Its totient is φ = 55583640.

The previous prime is 85188091. The next prime is 85188127. The reversal of 85188111 is 11188158.

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

It is not a de Polignac number, because 85188111 - 2⁵ = 85188079 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85188151) 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, 301945 + ... + 302226.

It is an arithmetic number, because the mean of its divisors is an integer number (14500128).

Almost surely, 2^85188111 is an apocalyptic number.

85188111 is a deficient number, since it is larger than the sum of its proper divisors (30812913).

85188111 is a wasteful number, since it uses less digits than its factorization.

85188111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604221.

The product of its digits is 2560, while the sum is 33.

The square root of 85188111 is about 9229.7405705686. The cubic root of 85188111 is about 440.0070780542.

The spelling of 85188111 in words is "eighty-five million, one hundred eighty-eight thousand, one hundred eleven".