143200121 has 2 divisors, whose sum is σ = 143200122. Its totient is φ = 143200120.

The previous prime is 143200111. The next prime is 143200151. The reversal of 143200121 is 121002341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141610000 + 1590121 = 11900^2 + 1261^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143200121 is a prime.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 143200096 and 143200105.

It is not a weakly prime, because it can be changed into another prime (143200111) 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, 71600060 + 71600061.

It is an arithmetic number, because the mean of its divisors is an integer number (71600061).

Almost surely, 2^143200121 is an apocalyptic number.

It is an amenable number.

143200121 is a deficient number, since it is larger than the sum of its proper divisors (1).

143200121 is an equidigital number, since it uses as much as digits as its factorization.

143200121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 143200121 is about 11966.6252970501. The cubic root of 143200121 is about 523.1759781781.

Adding to 143200121 its reverse (121002341), we get a palindrome (264202462).

The spelling of 143200121 in words is "one hundred forty-three million, two hundred thousand, one hundred twenty-one".