143889089 has 2 divisors, whose sum is σ = 143889090. Its totient is φ = 143889088.

The previous prime is 143889079. The next prime is 143889091. The reversal of 143889089 is 980988341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103693489 + 40195600 = 10183^2 + 6340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143889089 is a prime.

Together with 143889091, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (143889019) 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, 71944544 + 71944545.

It is an arithmetic number, because the mean of its divisors is an integer number (71944545).

Almost surely, 2^143889089 is an apocalyptic number.

It is an amenable number.

143889089 is a deficient number, since it is larger than the sum of its proper divisors (1).

143889089 is an equidigital number, since it uses as much as digits as its factorization.

143889089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497664, while the sum is 50.

The square root of 143889089 is about 11995.3778181431. The cubic root of 143889089 is about 524.0136752739.

The spelling of 143889089 in words is "one hundred forty-three million, eight hundred eighty-nine thousand, eighty-nine".