229543121 has 2 divisors, whose sum is σ = 229543122. Its totient is φ = 229543120.

The previous prime is 229543087. The next prime is 229543201. The reversal of 229543121 is 121345922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145564225 + 83978896 = 12065^2 + 9164^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-229543121 is a prime.

It is not a weakly prime, because it can be changed into another prime (229542121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114771560 + 114771561.

It is an arithmetic number, because the mean of its divisors is an integer number (114771561).

Almost surely, 2^229543121 is an apocalyptic number.

It is an amenable number.

229543121 is a deficient number, since it is larger than the sum of its proper divisors (1).

229543121 is an equidigital number, since it uses as much as digits as its factorization.

229543121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 29.

The square root of 229543121 is about 15150.6805457709. The cubic root of 229543121 is about 612.2866082130.

The spelling of 229543121 in words is "two hundred twenty-nine million, five hundred forty-three thousand, one hundred twenty-one".