85230231 has 16 divisors (see below), whose sum is σ = 122125824. Its totient is φ = 52677504.

The previous prime is 85230221. The next prime is 85230241. The reversal of 85230231 is 13203258.

It is an interprime number because it is at equal distance from previous prime (85230221) and next prime (85230241).

It is not a de Polignac number, because 85230231 - 2¹¹ = 85228183 is a prime.

It is a super-2 number, since 2×85230231² = 14528384552626722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85230221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9055 + ... + 15888.

It is an arithmetic number, because the mean of its divisors is an integer number (7632864).

Almost surely, 2^85230231 is an apocalyptic number.

85230231 is a deficient number, since it is larger than the sum of its proper divisors (36895593).

85230231 is a wasteful number, since it uses less digits than its factorization.

85230231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25030.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 85230231 is about 9232.0220428680. The cubic root of 85230231 is about 440.0795844336.

Adding to 85230231 its reverse (13203258), we get a palindrome (98433489).

The spelling of 85230231 in words is "eighty-five million, two hundred thirty thousand, two hundred thirty-one".