143485841 has 2 divisors, whose sum is σ = 143485842. Its totient is φ = 143485840.

The previous prime is 143485829. The next prime is 143485861. The reversal of 143485841 is 148584341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142683025 + 802816 = 11945^2 + 896^2 .

It is a cyclic number.

It is not a de Polignac number, because 143485841 - 2¹⁸ = 143223697 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 143485795 and 143485804.

It is not a weakly prime, because it can be changed into another prime (143485861) 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, 71742920 + 71742921.

It is an arithmetic number, because the mean of its divisors is an integer number (71742921).

Almost surely, 2^143485841 is an apocalyptic number.

It is an amenable number.

143485841 is a deficient number, since it is larger than the sum of its proper divisors (1).

143485841 is an equidigital number, since it uses as much as digits as its factorization.

143485841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61440, while the sum is 38.

The square root of 143485841 is about 11978.5575508907. The cubic root of 143485841 is about 523.5237025879.

The spelling of 143485841 in words is "one hundred forty-three million, four hundred eighty-five thousand, eight hundred forty-one".