143521159 has 2 divisors, whose sum is σ = 143521160. Its totient is φ = 143521158.

The previous prime is 143521153. The next prime is 143521171. The reversal of 143521159 is 951125341.

It is a weak prime.

It is an emirp because it is prime and its reverse (951125341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143521159 - 2³ = 143521151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143521159.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143521151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71760579 + 71760580.

It is an arithmetic number, because the mean of its divisors is an integer number (71760580).

Almost surely, 2^143521159 is an apocalyptic number.

143521159 is a deficient number, since it is larger than the sum of its proper divisors (1).

143521159 is an equidigital number, since it uses as much as digits as its factorization.

143521159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 31.

The square root of 143521159 is about 11980.0316777544. The cubic root of 143521159 is about 523.5666529194.

The spelling of 143521159 in words is "one hundred forty-three million, five hundred twenty-one thousand, one hundred fifty-nine".