229867229 has 2 divisors, whose sum is σ = 229867230. Its totient is φ = 229867228.

The previous prime is 229867193. The next prime is 229867243. The reversal of 229867229 is 922768922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 212868100 + 16999129 = 14590^2 + 4123^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-229867229 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229867249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114933614 + 114933615.

It is an arithmetic number, because the mean of its divisors is an integer number (114933615).

Almost surely, 2^229867229 is an apocalyptic number.

It is an amenable number.

229867229 is a deficient number, since it is larger than the sum of its proper divisors (1).

229867229 is an equidigital number, since it uses as much as digits as its factorization.

229867229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 47.

The square root of 229867229 is about 15161.3729259589. The cubic root of 229867229 is about 612.5746494605.

The spelling of 229867229 in words is "two hundred twenty-nine million, eight hundred sixty-seven thousand, two hundred twenty-nine".