143030889 has 12 divisors (see below), whose sum is σ = 207349636. Its totient is φ = 95008032.

The previous prime is 143030851. The next prime is 143030891. The reversal of 143030889 is 988030341.

It can be written as a sum of positive squares in 2 ways, for example, as 85877289 + 57153600 = 9267^2 + 7560^2 .

It is not a de Polignac number, because 143030889 - 2⁷ = 143030761 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (143030389) 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 in 11 ways as a sum of consecutive naturals, for example, 26194 + ... + 31179.

Almost surely, 2^143030889 is an apocalyptic number.

It is an amenable number.

143030889 is a deficient number, since it is larger than the sum of its proper divisors (64318747).

143030889 is a wasteful number, since it uses less digits than its factorization.

143030889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57656 (or 57653 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 143030889 is about 11959.5522073362. The cubic root of 143030889 is about 522.9698027989.

The spelling of 143030889 in words is "one hundred forty-three million, thirty thousand, eight hundred eighty-nine".