232730557 has 2 divisors, whose sum is σ = 232730558. Its totient is φ = 232730556.

The previous prime is 232730521. The next prime is 232730569. The reversal of 232730557 is 755037232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168506361 + 64224196 = 12981^2 + 8014^2 .

It is a cyclic number.

It is not a de Polignac number, because 232730557 - 2¹⁹ = 232206269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232730507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116365278 + 116365279.

It is an arithmetic number, because the mean of its divisors is an integer number (116365279).

Almost surely, 2^232730557 is an apocalyptic number.

It is an amenable number.

232730557 is a deficient number, since it is larger than the sum of its proper divisors (1).

232730557 is an equidigital number, since it uses as much as digits as its factorization.

232730557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44100, while the sum is 34.

The square root of 232730557 is about 15255.5090704965. The cubic root of 232730557 is about 615.1076613245.

Adding to 232730557 its reverse (755037232), we get a palindrome (987767789).

The spelling of 232730557 in words is "two hundred thirty-two million, seven hundred thirty thousand, five hundred fifty-seven".