143320601 has 2 divisors, whose sum is σ = 143320602. Its totient is φ = 143320600.

The previous prime is 143320579. The next prime is 143320603. The reversal of 143320601 is 106023341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106110601 + 37210000 = 10301^2 + 6100^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143320601 is a prime.

Together with 143320603, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (143320603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71660300 + 71660301.

It is an arithmetic number, because the mean of its divisors is an integer number (71660301).

Almost surely, 2^143320601 is an apocalyptic number.

It is an amenable number.

143320601 is a deficient number, since it is larger than the sum of its proper divisors (1).

143320601 is an equidigital number, since it uses as much as digits as its factorization.

143320601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 143320601 is about 11971.6582393585. The cubic root of 143320601 is about 523.3226600210.

Adding to 143320601 its reverse (106023341), we get a palindrome (249343942).

The spelling of 143320601 in words is "one hundred forty-three million, three hundred twenty thousand, six hundred one".