143130233 has 2 divisors, whose sum is σ = 143130234. Its totient is φ = 143130232.

The previous prime is 143130227. The next prime is 143130241. The reversal of 143130233 is 332031341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142730809 + 399424 = 11947^2 + 632^2 .

It is an emirp because it is prime and its reverse (332031341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143130233 - 2⁸ = 143129977 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (143130733) 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, 71565116 + 71565117.

It is an arithmetic number, because the mean of its divisors is an integer number (71565117).

Almost surely, 2^143130233 is an apocalyptic number.

It is an amenable number.

143130233 is a deficient number, since it is larger than the sum of its proper divisors (1).

143130233 is an equidigital number, since it uses as much as digits as its factorization.

143130233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 143130233 is about 11963.7048191603. The cubic root of 143130233 is about 523.0908533138.

Adding to 143130233 its reverse (332031341), we get a palindrome (475161574).

The spelling of 143130233 in words is "one hundred forty-three million, one hundred thirty thousand, two hundred thirty-three".