229658517529 has 27 divisors (see below), whose sum is σ = 269234131797. Its totient is φ = 195329091384.

The previous prime is 229658517511. The next prime is 229658517533. The reversal of 229658517529 is 925715856922.

The square root of 229658517529 is 479227.

It is a perfect power (a square), and thus also a powerful number.

229658517529 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 229658517529 - 2¹⁹ = 229657993241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229658517559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 748073194 + ... + 748073500.

It is an arithmetic number, because the mean of its divisors is an integer number (9971634511).

Almost surely, 2^229658517529 is an apocalyptic number.

229658517529 is the 479227-th square number.

229658517529 is the 239614-th centered octagonal number.

It is an amenable number.

229658517529 is a deficient number, since it is larger than the sum of its proper divisors (39575614268).

229658517529 is an frugal number, since it uses more digits than its factorization.

229658517529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074 (or 537 counting only the distinct ones).

The product of its digits is 27216000, while the sum is 61.

The spelling of 229658517529 in words is "two hundred twenty-nine billion, six hundred fifty-eight million, five hundred seventeen thousand, five hundred twenty-nine".