330143441 has 2 divisors, whose sum is σ = 330143442. Its totient is φ = 330143440.

The previous prime is 330143393. The next prime is 330143461. The reversal of 330143441 is 144341033.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198697216 + 131446225 = 14096^2 + 11465^2 .

It is a cyclic number.

It is not a de Polignac number, because 330143441 - 2⁶ = 330143377 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (330143461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165071720 + 165071721.

It is an arithmetic number, because the mean of its divisors is an integer number (165071721).

Almost surely, 2^330143441 is an apocalyptic number.

It is an amenable number.

330143441 is a deficient number, since it is larger than the sum of its proper divisors (1).

330143441 is an equidigital number, since it uses as much as digits as its factorization.

330143441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 330143441 is about 18169.8497792359. The cubic root of 330143441 is about 691.1424335499.

Adding to 330143441 its reverse (144341033), we get a palindrome (474484474).

The spelling of 330143441 in words is "three hundred thirty million, one hundred forty-three thousand, four hundred forty-one".