85181371 has 8 divisors (see below), whose sum is σ = 93192624. Its totient is φ = 77214720.

The previous prime is 85181357. The next prime is 85181413. The reversal of 85181371 is 17318158.

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

It is not a de Polignac number, because 85181371 - 2¹¹ = 85179323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85181171) 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, 7086 + ... + 14851.

It is an arithmetic number, because the mean of its divisors is an integer number (11649078).

Almost surely, 2^85181371 is an apocalyptic number.

85181371 is a deficient number, since it is larger than the sum of its proper divisors (8011253).

85181371 is a wasteful number, since it uses less digits than its factorization.

85181371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22301.

The product of its digits is 6720, while the sum is 34.

The square root of 85181371 is about 9229.3754393242. The cubic root of 85181371 is about 439.9954734383.

It can be divided in two parts, 8518 and 1371, that added together give a palindrome (9889).

The spelling of 85181371 in words is "eighty-five million, one hundred eighty-one thousand, three hundred seventy-one".