143243959 has 2 divisors, whose sum is σ = 143243960. Its totient is φ = 143243958.

The previous prime is 143243953. The next prime is 143243999. The reversal of 143243959 is 959342341.

It is an a-pointer prime, because the next prime (143243999) can be obtained adding 143243959 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 143243959 - 2⁵ = 143243927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143243953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71621979 + 71621980.

It is an arithmetic number, because the mean of its divisors is an integer number (71621980).

Almost surely, 2^143243959 is an apocalyptic number.

143243959 is a deficient number, since it is larger than the sum of its proper divisors (1).

143243959 is an equidigital number, since it uses as much as digits as its factorization.

143243959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 40.

The square root of 143243959 is about 11968.4568345297. The cubic root of 143243959 is about 523.2293595310.

The spelling of 143243959 in words is "one hundred forty-three million, two hundred forty-three thousand, nine hundred fifty-nine".