143640593 has 2 divisors, whose sum is σ = 143640594. Its totient is φ = 143640592.

The previous prime is 143640587. The next prime is 143640631. The reversal of 143640593 is 395046341.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95101504 + 48539089 = 9752^2 + 6967^2 .

It is a cyclic number.

It is not a de Polignac number, because 143640593 - 2⁶ = 143640529 is a prime.

It is not a weakly prime, because it can be changed into another prime (143640493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71820296 + 71820297.

It is an arithmetic number, because the mean of its divisors is an integer number (71820297).

Almost surely, 2^143640593 is an apocalyptic number.

It is an amenable number.

143640593 is a deficient number, since it is larger than the sum of its proper divisors (1).

143640593 is an equidigital number, since it uses as much as digits as its factorization.

143640593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 143640593 is about 11985.0153525142. The cubic root of 143640593 is about 523.7118448024.

The spelling of 143640593 in words is "one hundred forty-three million, six hundred forty thousand, five hundred ninety-three".