229139 has 2 divisors, whose sum is σ = 229140. Its totient is φ = 229138.

The previous prime is 229133. The next prime is 229153. The reversal of 229139 is 931922.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 229139 - 2⁴ = 229123 is a prime.

It is not a weakly prime, because it can be changed into another prime (229133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114569 + 114570.

It is an arithmetic number, because the mean of its divisors is an integer number (114570).

2²²⁹¹³⁹ is an apocalyptic number.

229139 is a deficient number, since it is larger than the sum of its proper divisors (1).

229139 is an equidigital number, since it uses as much as digits as its factorization.

229139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 972, while the sum is 26.

The square root of 229139 is about 478.6846561151. The cubic root of 229139 is about 61.1927077760.

It can be divided in two parts, 22913 and 9, that added together give a palindrome (22922).

The spelling of 229139 in words is "two hundred twenty-nine thousand, one hundred thirty-nine".