234138547 has 8 divisors (see below), whose sum is σ = 242587440. Its totient is φ = 225714720.

The previous prime is 234138517. The next prime is 234138571. The reversal of 234138547 is 745831432.

It is a happy number.

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 234138547 - 2²³ = 225749939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234138517) 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, 13897 + ... + 25717.

It is an arithmetic number, because the mean of its divisors is an integer number (30323430).

Almost surely, 2^234138547 is an apocalyptic number.

234138547 is a deficient number, since it is larger than the sum of its proper divisors (8448893).

234138547 is a wasteful number, since it uses less digits than its factorization.

234138547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12533.

The product of its digits is 80640, while the sum is 37.

The square root of 234138547 is about 15301.5864210218. The cubic root of 234138547 is about 616.3456089975.

Adding to 234138547 its reverse (745831432), we get a palindrome (979969979).

It can be divided in two parts, 2341385 and 47, that added together give a palindrome (2341432).

The spelling of 234138547 in words is "two hundred thirty-four million, one hundred thirty-eight thousand, five hundred forty-seven".