229939 has 2 divisors, whose sum is σ = 229940. Its totient is φ = 229938.

The previous prime is 229937. The next prime is 229949. The reversal of 229939 is 939922.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 229939 - 2¹ = 229937 is a prime.

Together with 229937, it forms a pair of twin primes.

229939 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (229937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114969 + 114970.

It is an arithmetic number, because the mean of its divisors is an integer number (114970).

2²²⁹⁹³⁹ is an apocalyptic number.

229939 is a deficient number, since it is larger than the sum of its proper divisors (1).

229939 is an equidigital number, since it uses as much as digits as its factorization.

229939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8748, while the sum is 34.

The square root of 229939 is about 479.5195512177. The cubic root of 229939 is about 61.2638397159.

The spelling of 229939 in words is "two hundred twenty-nine thousand, nine hundred thirty-nine".