143220304 has 10 divisors (see below), whose sum is σ = 277489370. Its totient is φ = 71610144.

The previous prime is 143220293. The next prime is 143220331. The reversal of 143220304 is 403022341.

143220304 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 131331600 + 11888704 = 11460^2 + 3448^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4475619 + ... + 4475650.

It is an arithmetic number, because the mean of its divisors is an integer number (27748937).

Almost surely, 2^143220304 is an apocalyptic number.

It is an amenable number.

143220304 is a deficient number, since it is larger than the sum of its proper divisors (134269066).

143220304 is an equidigital number, since it uses as much as digits as its factorization.

143220304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8951277 (or 8951271 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 143220304 is about 11967.4685710889. The cubic root of 143220304 is about 523.2005562875.

Adding to 143220304 its reverse (403022341), we get a palindrome (546242645).

It can be divided in two parts, 1432 and 20304, that added together give a triangular number (21736 = T₂₀₈).

The spelling of 143220304 in words is "one hundred forty-three million, two hundred twenty thousand, three hundred four".