143983643 has 2 divisors, whose sum is σ = 143983644. Its totient is φ = 143983642.

The previous prime is 143983633. The next prime is 143983649. The reversal of 143983643 is 346389341.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 143983643 - 2⁴ = 143983627 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143983643.

It is not a weakly prime, because it can be changed into another prime (143983649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71991821 + 71991822.

It is an arithmetic number, because the mean of its divisors is an integer number (71991822).

Almost surely, 2^143983643 is an apocalyptic number.

143983643 is a deficient number, since it is larger than the sum of its proper divisors (1).

143983643 is an equidigital number, since it uses as much as digits as its factorization.

143983643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 41.

The square root of 143983643 is about 11999.3184389781. The cubic root of 143983643 is about 524.1284320408.

The spelling of 143983643 in words is "one hundred forty-three million, nine hundred eighty-three thousand, six hundred forty-three".