143340121 has 2 divisors, whose sum is σ = 143340122. Its totient is φ = 143340120.

The previous prime is 143340103. The next prime is 143340133. The reversal of 143340121 is 121043341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99780121 + 43560000 = 9989^2 + 6600^2 .

It is a cyclic number.

It is not a de Polignac number, because 143340121 - 2¹¹ = 143338073 is a prime.

It is not a weakly prime, because it can be changed into another prime (143340721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71670060 + 71670061.

It is an arithmetic number, because the mean of its divisors is an integer number (71670061).

Almost surely, 2^143340121 is an apocalyptic number.

It is an amenable number.

143340121 is a deficient number, since it is larger than the sum of its proper divisors (1).

143340121 is an equidigital number, since it uses as much as digits as its factorization.

143340121 is an evil number, because the sum of its binary digits is even.

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

The square root of 143340121 is about 11972.4734704237. The cubic root of 143340121 is about 523.3464174676.

Adding to 143340121 its reverse (121043341), we get a palindrome (264383462).

The spelling of 143340121 in words is "one hundred forty-three million, three hundred forty thousand, one hundred twenty-one".