143020424 has 16 divisors (see below), whose sum is σ = 269527500. Its totient is φ = 71146432.

The previous prime is 143020399. The next prime is 143020433. The reversal of 143020424 is 424020341.

It can be written as a sum of positive squares in 2 ways, for example, as 112572100 + 30448324 = 10610^2 + 5518^2 .

It is a super-2 number, since 2×143020424² = 40909683362279552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 143020396 and 143020405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43799 + ... + 46950.

Almost surely, 2^143020424 is an apocalyptic number.

It is an amenable number.

143020424 is a deficient number, since it is larger than the sum of its proper divisors (126507076).

143020424 is a wasteful number, since it uses less digits than its factorization.

143020424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90952 (or 90948 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 143020424 is about 11959.1146829521. The cubic root of 143020424 is about 522.9570479492.

Adding to 143020424 its reverse (424020341), we get a palindrome (567040765).

The spelling of 143020424 in words is "one hundred forty-three million, twenty thousand, four hundred twenty-four".