143793489 has 20 divisors (see below), whose sum is σ = 223676656. Its totient is φ = 82163592.

The previous prime is 143793467. The next prime is 143793523. The reversal of 143793489 is 984397341.

It is a happy number.

It is not a de Polignac number, because 143793489 - 2¹⁷ = 143662417 is a prime.

It is a super-3 number, since 3×143793489³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (143793439) 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 in 19 ways as a sum of consecutive naturals, for example, 2779 + ... + 17184.

Almost surely, 2^143793489 is an apocalyptic number.

It is an amenable number.

143793489 is a deficient number, since it is larger than the sum of its proper divisors (79883167).

143793489 is an frugal number, since it uses more digits than its factorization.

143793489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19994 (or 19973 counting only the distinct ones).

The product of its digits is 653184, while the sum is 48.

The square root of 143793489 is about 11991.3922878038. The cubic root of 143793489 is about 523.8975978925.

The spelling of 143793489 in words is "one hundred forty-three million, seven hundred ninety-three thousand, four hundred eighty-nine".