85231200 has 144 divisors (see below), whose sum is σ = 293887440. Its totient is φ = 21381120.

The previous prime is 85231193. The next prime is 85231229. The reversal of 85231200 is 213258.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39756 + ... + 41844.

It is an arithmetic number, because the mean of its divisors is an integer number (2040885).

Almost surely, 2^85231200 is an apocalyptic number.

85231200 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85231200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146943720).

85231200 is an abundant number, since it is smaller than the sum of its proper divisors (208656240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85231200 is a wasteful number, since it uses less digits than its factorization.

85231200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2129 (or 2116 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 85231200 is about 9232.0745230961. The cubic root of 85231200 is about 440.0812522123.

Adding to 85231200 its reverse (213258), we get a palindrome (85444458).

The spelling of 85231200 in words is "eighty-five million, two hundred thirty-one thousand, two hundred".