229018243 has 2 divisors, whose sum is σ = 229018244. Its totient is φ = 229018242.

The previous prime is 229018219. The next prime is 229018259. The reversal of 229018243 is 342810922.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 229018243 - 2⁹ = 229017731 is a prime.

It is not a weakly prime, because it can be changed into another prime (229013243) 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 as a sum of consecutive naturals, namely, 114509121 + 114509122.

It is an arithmetic number, because the mean of its divisors is an integer number (114509122).

Almost surely, 2^229018243 is an apocalyptic number.

229018243 is a deficient number, since it is larger than the sum of its proper divisors (1).

229018243 is an equidigital number, since it uses as much as digits as its factorization.

229018243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 229018243 is about 15133.3487041038. The cubic root of 229018243 is about 611.8195630156.

The spelling of 229018243 in words is "two hundred twenty-nine million, eighteen thousand, two hundred forty-three".