230218529 has 2 divisors, whose sum is σ = 230218530. Its totient is φ = 230218528.

The previous prime is 230218507. The next prime is 230218537. The reversal of 230218529 is 925812032.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228826129 + 1392400 = 15127^2 + 1180^2 .

It is a cyclic number.

It is not a de Polignac number, because 230218529 - 2¹² = 230214433 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 230218495 and 230218504.

It is not a weakly prime, because it can be changed into another prime (230218579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115109264 + 115109265.

It is an arithmetic number, because the mean of its divisors is an integer number (115109265).

Almost surely, 2^230218529 is an apocalyptic number.

It is an amenable number.

230218529 is a deficient number, since it is larger than the sum of its proper divisors (1).

230218529 is an equidigital number, since it uses as much as digits as its factorization.

230218529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 230218529 is about 15172.9538653487. The cubic root of 230218529 is about 612.8865511634.

The spelling of 230218529 in words is "two hundred thirty million, two hundred eighteen thousand, five hundred twenty-nine".