143431140 has 24 divisors (see below), whose sum is σ = 401607360. Its totient is φ = 38248288.

The previous prime is 143431139. The next prime is 143431157. The reversal of 143431140 is 41134341.

143431140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1195200 + ... + 1195319.

It is an arithmetic number, because the mean of its divisors is an integer number (16733640).

Almost surely, 2^143431140 is an apocalyptic number.

143431140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143431140 is an abundant number, since it is smaller than the sum of its proper divisors (258176220).

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

143431140 is a wasteful number, since it uses less digits than its factorization.

143431140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2390531 (or 2390529 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 143431140 is about 11976.2740449607. The cubic root of 143431140 is about 523.4571666153.

Adding to 143431140 its reverse (41134341), we get a palindrome (184565481).

The spelling of 143431140 in words is "one hundred forty-three million, four hundred thirty-one thousand, one hundred forty".