229000831 has 2 divisors, whose sum is σ = 229000832. Its totient is φ = 229000830.

The previous prime is 229000753. The next prime is 229000853. The reversal of 229000831 is 138000922.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-229000831 is a prime.

It is a super-2 number, since 2×229000831² = 104882761197381122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 229000796 and 229000805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229000231) by changing a digit.

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 as a sum of consecutive naturals, namely, 114500415 + 114500416.

It is an arithmetic number, because the mean of its divisors is an integer number (114500416).

Almost surely, 2^229000831 is an apocalyptic number.

229000831 is a deficient number, since it is larger than the sum of its proper divisors (1).

229000831 is an equidigital number, since it uses as much as digits as its factorization.

229000831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 229000831 is about 15132.7734074095. The cubic root of 229000831 is about 611.8040573043.

Subtracting from 229000831 its reverse (138000922), we obtain a palindrome (90999909).

The spelling of 229000831 in words is "two hundred twenty-nine million, eight hundred thirty-one", and thus it is an aban number.