143344889 has 2 divisors, whose sum is σ = 143344890. Its totient is φ = 143344888.

The previous prime is 143344879. The next prime is 143344891. The reversal of 143344889 is 988443341.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119530489 + 23814400 = 10933^2 + 4880^2 .

It is a cyclic number.

It is not a de Polignac number, because 143344889 - 2¹² = 143340793 is a prime.

Together with 143344891, 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 (143344819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71672444 + 71672445.

It is an arithmetic number, because the mean of its divisors is an integer number (71672445).

Almost surely, 2^143344889 is an apocalyptic number.

It is an amenable number.

143344889 is a deficient number, since it is larger than the sum of its proper divisors (1).

143344889 is an equidigital number, since it uses as much as digits as its factorization.

143344889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 44.

The square root of 143344889 is about 11972.6725921993. The cubic root of 143344889 is about 523.3522201883.

The spelling of 143344889 in words is "one hundred forty-three million, three hundred forty-four thousand, eight hundred eighty-nine".