231073085 has 8 divisors (see below), whose sum is σ = 277607736. Its totient is φ = 184645120.

The previous prime is 231073049. The next prime is 231073147. The reversal of 231073085 is 580370132.

It can be written as a sum of positive squares in 4 ways, for example, as 57123364 + 173949721 = 7558^2 + 13189^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-231073085 is a prime.

It is a super-2 number, since 2×231073085² = 106789541222834450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21824 + ... + 30633.

It is an arithmetic number, because the mean of its divisors is an integer number (34700967).

Almost surely, 2^231073085 is an apocalyptic number.

It is an amenable number.

231073085 is a deficient number, since it is larger than the sum of its proper divisors (46534651).

231073085 is an equidigital number, since it uses as much as digits as its factorization.

231073085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53343.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 231073085 is about 15201.0882834092. The cubic root of 231073085 is about 613.6439462903.

The spelling of 231073085 in words is "two hundred thirty-one million, seventy-three thousand, eighty-five".