234138289 has 8 divisors (see below), whose sum is σ = 291912768. Its totient is φ = 182445360.

The previous prime is 234138283. The next prime is 234138323. The reversal of 234138289 is 982831432.

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

It is a cyclic number.

It is not a de Polignac number, because 234138289 - 2¹⁷ = 234007217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (234138283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1520302 + ... + 1520455.

It is an arithmetic number, because the mean of its divisors is an integer number (36489096).

Almost surely, 2^234138289 is an apocalyptic number.

It is an amenable number.

234138289 is a deficient number, since it is larger than the sum of its proper divisors (57774479).

234138289 is a wasteful number, since it uses less digits than its factorization.

234138289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3040775.

The product of its digits is 82944, while the sum is 40.

The square root of 234138289 is about 15301.5779905211. The cubic root of 234138289 is about 616.3453826113.

The spelling of 234138289 in words is "two hundred thirty-four million, one hundred thirty-eight thousand, two hundred eighty-nine".