229881317 has 2 divisors, whose sum is σ = 229881318. Its totient is φ = 229881316.

The previous prime is 229881263. The next prime is 229881319. The reversal of 229881317 is 713188922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 152423716 + 77457601 = 12346^2 + 8801^2 .

It is a cyclic number.

It is not a de Polignac number, because 229881317 - 2¹⁰ = 229880293 is a prime.

Together with 229881319, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229881319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114940658 + 114940659.

It is an arithmetic number, because the mean of its divisors is an integer number (114940659).

Almost surely, 2^229881317 is an apocalyptic number.

It is an amenable number.

229881317 is a deficient number, since it is larger than the sum of its proper divisors (1).

229881317 is an equidigital number, since it uses as much as digits as its factorization.

229881317 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 41.

The square root of 229881317 is about 15161.8375205646. The cubic root of 229881317 is about 612.5871636053.

The spelling of 229881317 in words is "two hundred twenty-nine million, eight hundred eighty-one thousand, three hundred seventeen".