229390313 has 2 divisors, whose sum is σ = 229390314. Its totient is φ = 229390312.

The previous prime is 229390267. The next prime is 229390351. The reversal of 229390313 is 313093922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 217474009 + 11916304 = 14747^2 + 3452^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-229390313 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 229390313.

It is not a weakly prime, because it can be changed into another prime (229390813) 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, 114695156 + 114695157.

It is an arithmetic number, because the mean of its divisors is an integer number (114695157).

Almost surely, 2^229390313 is an apocalyptic number.

It is an amenable number.

229390313 is a deficient number, since it is larger than the sum of its proper divisors (1).

229390313 is an equidigital number, since it uses as much as digits as its factorization.

229390313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 229390313 is about 15145.6367644282. The cubic root of 229390313 is about 612.1507106368.

The spelling of 229390313 in words is "two hundred twenty-nine million, three hundred ninety thousand, three hundred thirteen".