229654683729 has 21 divisors (see below), whose sum is σ = 344343912843. Its totient is φ = 153094496472.

The previous prime is 229654683703. The next prime is 229654683737. The reversal of 229654683729 is 927386456922.

It is a happy number.

The square root of 229654683729 is 479223.

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

229654683729 is a `hidden beast` number, since 2 + 2 + 9 + 6 + 546 + 83 + 7 + 2 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 13485480129 + 216169203600 = 116127^2 + 464940^2 .

It is not a de Polignac number, because 229654683729 - 2²⁷ = 229520466001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (229654683779) by changing a digit.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 12930147 + ... + 12947895.

It is an arithmetic number, because the mean of its divisors is an integer number (16397329183).

Almost surely, 2^229654683729 is an apocalyptic number.

229654683729 is the 479223-rd square number.

229654683729 is the 239612-nd centered octagonal number.

It is an amenable number.

229654683729 is a deficient number, since it is larger than the sum of its proper divisors (114689229114).

229654683729 is an frugal number, since it uses more digits than its factorization.

229654683729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35516 (or 17752 counting only the distinct ones).

The product of its digits is 78382080, while the sum is 63.

It can be divided in two parts, 2296 and 54683729, that added together give a square (54686025 = 7395²).

The spelling of 229654683729 in words is "two hundred twenty-nine billion, six hundred fifty-four million, six hundred eighty-three thousand, seven hundred twenty-nine".