229030831 has 2 divisors, whose sum is σ = 229030832. Its totient is φ = 229030830.

The previous prime is 229030829. The next prime is 229030853. The reversal of 229030831 is 138030922.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 229030831 - 2¹ = 229030829 is a prime.

It is a super-2 number, since 2×229030831² = 104910243097101122, which contains 22 as substring.

Together with 229030829, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 229030831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229030801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114515415 + 114515416.

It is an arithmetic number, because the mean of its divisors is an integer number (114515416).

Almost surely, 2^229030831 is an apocalyptic number.

229030831 is a deficient number, since it is larger than the sum of its proper divisors (1).

229030831 is an equidigital number, since it uses as much as digits as its factorization.

229030831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 229030831 is about 15133.7646010502. The cubic root of 229030831 is about 611.8307723752.

Subtracting from 229030831 its reverse (138030922), we obtain a palindrome (90999909).

The spelling of 229030831 in words is "two hundred twenty-nine million, thirty thousand, eight hundred thirty-one".