232543155 has 24 divisors (see below), whose sum is σ = 402895728. Its totient is φ = 114481536.

The previous prime is 232543151. The next prime is 232543177. The reversal of 232543155 is 551345232.

It is not a de Polignac number, because 232543155 - 2² = 232543151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (232543151) 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 in 23 ways as a sum of consecutive naturals, for example, 43332 + ... + 48401.

It is an arithmetic number, because the mean of its divisors is an integer number (16787322).

Almost surely, 2^232543155 is an apocalyptic number.

232543155 is a deficient number, since it is larger than the sum of its proper divisors (170352573).

232543155 is a wasteful number, since it uses less digits than its factorization.

232543155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91767 (or 91754 counting only the distinct ones).

The product of its digits is 18000, while the sum is 30.

The square root of 232543155 is about 15249.3657245146. The cubic root of 232543155 is about 614.9425156133.

Adding to 232543155 its reverse (551345232), we get a palindrome (783888387).

The spelling of 232543155 in words is "two hundred thirty-two million, five hundred forty-three thousand, one hundred fifty-five".