234138 has 8 divisors (see below), whose sum is σ = 468288. Its totient is φ = 78044.

The previous prime is 234131. The next prime is 234139. The reversal of 234138 is 831432.

It is a happy number.

234138 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

234138 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19506 + ... + 19517.

It is an arithmetic number, because the mean of its divisors is an integer number (58536).

2²³⁴¹³⁸ is an apocalyptic number.

234138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

234138 is a wasteful number, since it uses less digits than its factorization.

234138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39028.

The product of its digits is 576, while the sum is 21.

The square root of 234138 is about 483.8780838186. The cubic root of 234138 is about 61.6345129023.

The spelling of 234138 in words is "two hundred thirty-four thousand, one hundred thirty-eight".