229712029 has 2 divisors, whose sum is σ = 229712030. Its totient is φ = 229712028.

The previous prime is 229712027. The next prime is 229712039. The reversal of 229712029 is 920217922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210308004 + 19404025 = 14502^2 + 4405^2 .

It is a cyclic number.

It is not a de Polignac number, because 229712029 - 2¹ = 229712027 is a prime.

Together with 229712027, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 229711985 and 229712003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229712023) 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, 114856014 + 114856015.

It is an arithmetic number, because the mean of its divisors is an integer number (114856015).

Almost surely, 2^229712029 is an apocalyptic number.

It is an amenable number.

229712029 is a deficient number, since it is larger than the sum of its proper divisors (1).

229712029 is an equidigital number, since it uses as much as digits as its factorization.

229712029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 229712029 is about 15156.2537917521. The cubic root of 229712029 is about 612.4367539304.

The spelling of 229712029 in words is "two hundred twenty-nine million, seven hundred twelve thousand, twenty-nine".