143131332 has 48 divisors (see below), whose sum is σ = 354896640. Its totient is φ = 44769312.

The previous prime is 143131301. The next prime is 143131343. The reversal of 143131332 is 233131341.

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 = 143131299 and 143131308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21463 + ... + 27329.

It is an arithmetic number, because the mean of its divisors is an integer number (7393680).

Almost surely, 2^143131332 is an apocalyptic number.

143131332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143131332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177448320).

143131332 is an abundant number, since it is smaller than the sum of its proper divisors (211765308).

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

143131332 is a wasteful number, since it uses less digits than its factorization.

143131332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6000 (or 5998 counting only the distinct ones).

The product of its digits is 648, while the sum is 21.

The square root of 143131332 is about 11963.7507496604. The cubic root of 143131332 is about 523.0921921304.

Adding to 143131332 its reverse (233131341), we get a palindrome (376262673).

Subtracting 143131332 from its reverse (233131341), we obtain a palindrome (90000009).

The spelling of 143131332 in words is "one hundred forty-three million, one hundred thirty-one thousand, three hundred thirty-two".