143301421 has 2 divisors, whose sum is σ = 143301422. Its totient is φ = 143301420.

The previous prime is 143301377. The next prime is 143301427. The reversal of 143301421 is 124103341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141372100 + 1929321 = 11890^2 + 1389^2 .

It is a cyclic number.

It is not a de Polignac number, because 143301421 - 2¹³ = 143293229 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143301427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71650710 + 71650711.

It is an arithmetic number, because the mean of its divisors is an integer number (71650711).

Almost surely, 2^143301421 is an apocalyptic number.

It is an amenable number.

143301421 is a deficient number, since it is larger than the sum of its proper divisors (1).

143301421 is an equidigital number, since it uses as much as digits as its factorization.

143301421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 143301421 is about 11970.8571539385. The cubic root of 143301421 is about 523.2993142811.

Adding to 143301421 its reverse (124103341), we get a palindrome (267404762).

It can be divided in two parts, 14330 and 1421, that added together give a palindrome (15751).

The spelling of 143301421 in words is "one hundred forty-three million, three hundred one thousand, four hundred twenty-one".