143321424 has 160 divisors (see below), whose sum is σ = 415259136. Its totient is φ = 42393600.

The previous prime is 143321341. The next prime is 143321429. The reversal of 143321424 is 424123341.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 143321394 and 143321403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143321429) 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 31 ways as a sum of consecutive naturals, for example, 1418974 + ... + 1419074.

Almost surely, 2^143321424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143321424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207629568).

143321424 is an abundant number, since it is smaller than the sum of its proper divisors (271937712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143321424 is a wasteful number, since it uses less digits than its factorization.

143321424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213 (or 207 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 143321424 is about 11971.6926121581. The cubic root of 143321424 is about 523.3236617233.

Adding to 143321424 its reverse (424123341), we get a palindrome (567444765).

The spelling of 143321424 in words is "one hundred forty-three million, three hundred twenty-one thousand, four hundred twenty-four".