232215143 has 2 divisors, whose sum is σ = 232215144. Its totient is φ = 232215142.

The previous prime is 232215127. The next prime is 232215149. The reversal of 232215143 is 341512232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 232215143 - 2⁴ = 232215127 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232215149) 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, 116107571 + 116107572.

It is an arithmetic number, because the mean of its divisors is an integer number (116107572).

Almost surely, 2^232215143 is an apocalyptic number.

232215143 is a deficient number, since it is larger than the sum of its proper divisors (1).

232215143 is an equidigital number, since it uses as much as digits as its factorization.

232215143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 23.

The square root of 232215143 is about 15238.6069901418. The cubic root of 232215143 is about 614.6532453797.

Adding to 232215143 its reverse (341512232), we get a palindrome (573727375).

The spelling of 232215143 in words is "two hundred thirty-two million, two hundred fifteen thousand, one hundred forty-three".