230317729 has 2 divisors, whose sum is σ = 230317730. Its totient is φ = 230317728.

The previous prime is 230317727. The next prime is 230317741. The reversal of 230317729 is 927713032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206698129 + 23619600 = 14377^2 + 4860^2 .

It is a cyclic number.

It is not a de Polignac number, because 230317729 - 2¹ = 230317727 is a prime.

Together with 230317727, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 230317694 and 230317703.

It is not a weakly prime, because it can be changed into another prime (230317723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115158864 + 115158865.

It is an arithmetic number, because the mean of its divisors is an integer number (115158865).

Almost surely, 2^230317729 is an apocalyptic number.

It is an amenable number.

230317729 is a deficient number, since it is larger than the sum of its proper divisors (1).

230317729 is an equidigital number, since it uses as much as digits as its factorization.

230317729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 34.

The square root of 230317729 is about 15176.2224878261. Note that the first 3 decimals coincide. The cubic root of 230317729 is about 612.9745684278.

The spelling of 230317729 in words is "two hundred thirty million, three hundred seventeen thousand, seven hundred twenty-nine".