143189089 has 2 divisors, whose sum is σ = 143189090. Its totient is φ = 143189088.

The previous prime is 143189077. The next prime is 143189131. The reversal of 143189089 is 980981341.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82083600 + 61105489 = 9060^2 + 7817^2 .

It is an emirp because it is prime and its reverse (980981341) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 143189089 - 2¹⁷ = 143058017 is a prime.

It is not a weakly prime, because it can be changed into another prime (143189989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71594544 + 71594545.

It is an arithmetic number, because the mean of its divisors is an integer number (71594545).

Almost surely, 2^143189089 is an apocalyptic number.

It is an amenable number.

143189089 is a deficient number, since it is larger than the sum of its proper divisors (1).

143189089 is an equidigital number, since it uses as much as digits as its factorization.

143189089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 43.

The square root of 143189089 is about 11966.1643395033. The cubic root of 143189089 is about 523.1625428412.

The spelling of 143189089 in words is "one hundred forty-three million, one hundred eighty-nine thousand, eighty-nine".