230990833 has 2 divisors, whose sum is σ = 230990834. Its totient is φ = 230990832.

The previous prime is 230990831. The next prime is 230990861. The reversal of 230990833 is 338099032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158961664 + 72029169 = 12608^2 + 8487^2 .

It is a cyclic number.

It is not a de Polignac number, because 230990833 - 2¹ = 230990831 is a prime.

Together with 230990831, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 230990792 and 230990801.

It is not a weakly prime, because it can be changed into another prime (230990831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115495416 + 115495417.

It is an arithmetic number, because the mean of its divisors is an integer number (115495417).

Almost surely, 2^230990833 is an apocalyptic number.

It is an amenable number.

230990833 is a deficient number, since it is larger than the sum of its proper divisors (1).

230990833 is an equidigital number, since it uses as much as digits as its factorization.

230990833 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 230990833 is about 15198.3825784193. The cubic root of 230990833 is about 613.5711274361.

The spelling of 230990833 in words is "two hundred thirty million, nine hundred ninety thousand, eight hundred thirty-three".