229868929 has 2 divisors, whose sum is σ = 229868930. Its totient is φ = 229868928.

The previous prime is 229868879. The next prime is 229868941. The reversal of 229868929 is 929868922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 223442704 + 6426225 = 14948^2 + 2535^2 .

It is a cyclic number.

It is not a de Polignac number, because 229868929 - 2²¹ = 227771777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 229868929.

It is not a weakly prime, because it can be changed into another prime (229868129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114934464 + 114934465.

It is an arithmetic number, because the mean of its divisors is an integer number (114934465).

Almost surely, 2^229868929 is an apocalyptic number.

It is an amenable number.

229868929 is a deficient number, since it is larger than the sum of its proper divisors (1).

229868929 is an equidigital number, since it uses as much as digits as its factorization.

229868929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2239488, while the sum is 55.

The square root of 229868929 is about 15161.4289893796. The cubic root of 229868929 is about 612.5761595704.

The spelling of 229868929 in words is "two hundred twenty-nine million, eight hundred sixty-eight thousand, nine hundred twenty-nine".