234561 has 8 divisors (see below), whose sum is σ = 320544. Its totient is φ = 152480.

The previous prime is 234547. The next prime is 234571. The reversal of 234561 is 165432.

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 234561 - 2⁵ = 234529 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (234511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 831 + ... + 1076.

It is an arithmetic number, because the mean of its divisors is an integer number (40068).

2²³⁴⁵⁶¹ is an apocalyptic number.

It is an amenable number.

234561 is a deficient number, since it is larger than the sum of its proper divisors (85983).

234561 is a wasteful number, since it uses less digits than its factorization.

234561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951.

The product of its digits is 720, while the sum is 21.

The square root of 234561 is about 484.3149801524. The cubic root of 234561 is about 61.6716074282.

Adding to 234561 its reverse (165432), we get a palindrome (399993).

The spelling of 234561 in words is "two hundred thirty-four thousand, five hundred sixty-one".