229538279 has 2 divisors, whose sum is σ = 229538280. Its totient is φ = 229538278.

The previous prime is 229538263. The next prime is 229538317. The reversal of 229538279 is 972835922.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 229538279 - 2⁴ = 229538263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229538479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114769139 + 114769140.

It is an arithmetic number, because the mean of its divisors is an integer number (114769140).

Almost surely, 2^229538279 is an apocalyptic number.

229538279 is a deficient number, since it is larger than the sum of its proper divisors (1).

229538279 is an equidigital number, since it uses as much as digits as its factorization.

229538279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 47.

The square root of 229538279 is about 15150.5207501260. The cubic root of 229538279 is about 612.2823029760.

The spelling of 229538279 in words is "two hundred twenty-nine million, five hundred thirty-eight thousand, two hundred seventy-nine".