232730561 has 16 divisors (see below), whose sum is σ = 282030336. Its totient is φ = 187478016.

The previous prime is 232730557. The next prime is 232730569. The reversal of 232730561 is 165037232.

It is a cyclic number.

It is not a de Polignac number, because 232730561 - 2² = 232730557 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (232730569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144020 + ... + 145626.

It is an arithmetic number, because the mean of its divisors is an integer number (17626896).

Almost surely, 2^232730561 is an apocalyptic number.

It is an amenable number.

232730561 is a deficient number, since it is larger than the sum of its proper divisors (49299775).

232730561 is a wasteful number, since it uses less digits than its factorization.

232730561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2848.

The product of its (nonzero) digits is 7560, while the sum is 29.

The square root of 232730561 is about 15255.5092015966. The cubic root of 232730561 is about 615.1076648486.

Adding to 232730561 its reverse (165037232), we get a palindrome (397767793).

The spelling of 232730561 in words is "two hundred thirty-two million, seven hundred thirty thousand, five hundred sixty-one".