232541557 has 2 divisors, whose sum is σ = 232541558. Its totient is φ = 232541556.

The previous prime is 232541531. The next prime is 232541563. The reversal of 232541557 is 755145232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188265841 + 44275716 = 13721^2 + 6654^2 .

It is a cyclic number.

It is not a de Polignac number, because 232541557 - 2²⁷ = 98323829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232541527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116270778 + 116270779.

It is an arithmetic number, because the mean of its divisors is an integer number (116270779).

Almost surely, 2^232541557 is an apocalyptic number.

It is an amenable number.

232541557 is a deficient number, since it is larger than the sum of its proper divisors (1).

232541557 is an equidigital number, since it uses as much as digits as its factorization.

232541557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42000, while the sum is 34.

The square root of 232541557 is about 15249.3133288027. The cubic root of 232541557 is about 614.9411070139.

Adding to 232541557 its reverse (755145232), we get a palindrome (987686789).

The spelling of 232541557 in words is "two hundred thirty-two million, five hundred forty-one thousand, five hundred fifty-seven".