234139 has 2 divisors, whose sum is σ = 234140. Its totient is φ = 234138.

The previous prime is 234131. The next prime is 234149. The reversal of 234139 is 931432.

234139 is nontrivially palindromic in base 15.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 234139 - 2³ = 234131 is a prime.

234139 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (234131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117069 + 117070.

It is an arithmetic number, because the mean of its divisors is an integer number (117070).

2²³⁴¹³⁹ is an apocalyptic number.

234139 is a deficient number, since it is larger than the sum of its proper divisors (1).

234139 is an equidigital number, since it uses as much as digits as its factorization.

234139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 22.

The square root of 234139 is about 483.8791171357. The cubic root of 234139 is about 61.6346006489.

It can be divided in two parts, 234 and 139, that added together give a palindrome (373).

The spelling of 234139 in words is "two hundred thirty-four thousand, one hundred thirty-nine".