143200424 has 8 divisors (see below), whose sum is σ = 268500810. Its totient is φ = 71600208.

The previous prime is 143200417. The next prime is 143200427. The reversal of 143200424 is 424002341.

It can be written as a sum of positive squares in only one way, i.e., 83137924 + 60062500 = 9118^2 + 7750^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×143200424² = 41012722867559552, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 143200396 and 143200405.

It is not an unprimeable number, because it can be changed into a prime (143200427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8950019 + ... + 8950034.

Almost surely, 2^143200424 is an apocalyptic number.

It is an amenable number.

143200424 is a deficient number, since it is larger than the sum of its proper divisors (125300386).

143200424 is a wasteful number, since it uses less digits than its factorization.

143200424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17900059 (or 17900055 counting only the distinct ones).

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

The square root of 143200424 is about 11966.6379572543. The cubic root of 143200424 is about 523.1763471774.

Adding to 143200424 its reverse (424002341), we get a palindrome (567202765).

The spelling of 143200424 in words is "one hundred forty-three million, two hundred thousand, four hundred twenty-four".