229856261 has 4 divisors (see below), whose sum is σ = 229930092. Its totient is φ = 229782432.

The previous prime is 229856239. The next prime is 229856287. The reversal of 229856261 is 162658922.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 125305636 + 104550625 = 11194^2 + 10225^2 .

It is a cyclic number.

It is not a de Polignac number, because 229856261 - 2⁶ = 229856197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229858261) 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 in 3 ways as a sum of consecutive naturals, for example, 32030 + ... + 38543.

It is an arithmetic number, because the mean of its divisors is an integer number (57482523).

Almost surely, 2^229856261 is an apocalyptic number.

It is an amenable number.

229856261 is a deficient number, since it is larger than the sum of its proper divisors (73831).

229856261 is an equidigital number, since it uses as much as digits as its factorization.

229856261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73830.

The product of its digits is 103680, while the sum is 41.

The square root of 229856261 is about 15161.0112129765. The cubic root of 229856261 is about 612.5649064078.

The spelling of 229856261 in words is "two hundred twenty-nine million, eight hundred fifty-six thousand, two hundred sixty-one".