143240132 has 36 divisors (see below), whose sum is σ = 297119340. Its totient is φ = 60225984.

The previous prime is 143240129. The next prime is 143240137. The reversal of 143240132 is 231042341.

143240132 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 125126596 + 18113536 = 11186^2 + 4256^2 .

It is not an unprimeable number, because it can be changed into a prime (143240137) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3494 + ... + 17282.

It is an arithmetic number, because the mean of its divisors is an integer number (8253315).

Almost surely, 2^143240132 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 143240132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148559670).

143240132 is an abundant number, since it is smaller than the sum of its proper divisors (153879208).

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

143240132 is a wasteful number, since it uses less digits than its factorization.

143240132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13860 (or 13851 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 143240132 is about 11968.2969548721. The cubic root of 143240132 is about 523.2246998427.

Adding to 143240132 its reverse (231042341), we get a palindrome (374282473).

The spelling of 143240132 in words is "one hundred forty-three million, two hundred forty thousand, one hundred thirty-two".