143401232 has 60 divisors (see below), whose sum is σ = 303550884. Its totient is φ = 65594880.

The previous prime is 143401207. The next prime is 143401241. The reversal of 143401232 is 232104341.

It can be written as a sum of positive squares in 6 ways, for example, as 27709696 + 115691536 = 5264^2 + 10756^2 .

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 11 ways as a sum of consecutive naturals, for example, 489278 + ... + 489570.

Almost surely, 2^143401232 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 143401232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151775442).

143401232 is an abundant number, since it is smaller than the sum of its proper divisors (160149652).

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

143401232 is a wasteful number, since it uses less digits than its factorization.

143401232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508 (or 489 counting only the distinct ones).

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

The square root of 143401232 is about 11975.0253444408. The cubic root of 143401232 is about 523.4207806413.

Adding to 143401232 its reverse (232104341), we get a palindrome (375505573).

The spelling of 143401232 in words is "one hundred forty-three million, four hundred one thousand, two hundred thirty-two".