143313641 has 2 divisors, whose sum is σ = 143313642. Its totient is φ = 143313640.

The previous prime is 143313629. The next prime is 143313661. The reversal of 143313641 is 146313341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89965225 + 53348416 = 9485^2 + 7304^2 .

It is a cyclic number.

It is not a de Polignac number, because 143313641 - 2¹⁴ = 143297257 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 143313641.

It is not a weakly prime, because it can be changed into another prime (143313661) 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, 71656820 + 71656821.

It is an arithmetic number, because the mean of its divisors is an integer number (71656821).

Almost surely, 2^143313641 is an apocalyptic number.

It is an amenable number.

143313641 is a deficient number, since it is larger than the sum of its proper divisors (1).

143313641 is an equidigital number, since it uses as much as digits as its factorization.

143313641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 26.

The square root of 143313641 is about 11971.3675492819. The cubic root of 143313641 is about 523.3141886064.

Adding to 143313641 its reverse (146313341), we get a palindrome (289626982).

The spelling of 143313641 in words is "one hundred forty-three million, three hundred thirteen thousand, six hundred forty-one".