143220313 has 8 divisors (see below), whose sum is σ = 145981440. Its totient is φ = 140484960.

The previous prime is 143220293. The next prime is 143220331. The reversal of 143220313 is 313022341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 143220313 - 2⁹ = 143219801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143220353) 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 in 7 ways as a sum of consecutive naturals, for example, 4968 + ... + 17638.

It is an arithmetic number, because the mean of its divisors is an integer number (18247680).

Almost surely, 2^143220313 is an apocalyptic number.

It is an amenable number.

143220313 is a deficient number, since it is larger than the sum of its proper divisors (2761127).

143220313 is a wasteful number, since it uses less digits than its factorization.

143220313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12887.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 143220313 is about 11967.4689471082. The cubic root of 143220313 is about 523.2005672469.

Adding to 143220313 its reverse (313022341), we get a palindrome (456242654).

The spelling of 143220313 in words is "one hundred forty-three million, two hundred twenty thousand, three hundred thirteen".