229986961 has 2 divisors, whose sum is σ = 229986962. Its totient is φ = 229986960.

The previous prime is 229986943. The next prime is 229986989. The reversal of 229986961 is 169689922.

229986961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 192238225 + 37748736 = 13865^2 + 6144^2 .

It is a cyclic number.

It is not a de Polignac number, because 229986961 - 2⁵ = 229986929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 229986899 and 229986908.

It is not a weakly prime, because it can be changed into another prime (229986061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114993480 + 114993481.

It is an arithmetic number, because the mean of its divisors is an integer number (114993481).

Almost surely, 2^229986961 is an apocalyptic number.

It is an amenable number.

229986961 is a deficient number, since it is larger than the sum of its proper divisors (1).

229986961 is an equidigital number, since it uses as much as digits as its factorization.

229986961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 839808, while the sum is 52.

The square root of 229986961 is about 15165.3209989106. The cubic root of 229986961 is about 612.6809891904.

The spelling of 229986961 in words is "two hundred twenty-nine million, nine hundred eighty-six thousand, nine hundred sixty-one".