143323240 has 16 divisors (see below), whose sum is σ = 322477380. Its totient is φ = 57329280.

The previous prime is 143323231. The next prime is 143323247. The reversal of 143323240 is 42323341.

It is a happy number.

143323240 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 142993764 + 329476 = 11958^2 + 574^2 .

It is a super-2 number, since 2×143323240² = 41083102248195200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (143323247) 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 3 ways as a sum of consecutive naturals, for example, 1791501 + ... + 1791580.

Almost surely, 2^143323240 is an apocalyptic number.

143323240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143323240 is an abundant number, since it is smaller than the sum of its proper divisors (179154140).

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

143323240 is a wasteful number, since it uses less digits than its factorization.

143323240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3583092 (or 3583088 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 143323240 is about 11971.7684575003. The cubic root of 143323240 is about 523.3258720273.

Adding to 143323240 its reverse (42323341), we get a palindrome (185646581).

The spelling of 143323240 in words is "one hundred forty-three million, three hundred twenty-three thousand, two hundred forty".