143230140 has 48 divisors (see below), whose sum is σ = 445606560. Its totient is φ = 38194560.

The previous prime is 143230133. The next prime is 143230141. The reversal of 143230140 is 41032341.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143230141) 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 15 ways as a sum of consecutive naturals, for example, 132081 + ... + 133160.

It is an arithmetic number, because the mean of its divisors is an integer number (9283470).

Almost surely, 2^143230140 is an apocalyptic number.

143230140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143230140 is an abundant number, since it is smaller than the sum of its proper divisors (302376420).

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

143230140 is a wasteful number, since it uses less digits than its factorization.

143230140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265259 (or 265251 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 143230140 is about 11967.8795114256. The cubic root of 143230140 is about 523.2125333670.

Adding to 143230140 its reverse (41032341), we get a palindrome (184262481).

It can be divided in two parts, 1432301 and 40, that added together give a palindrome (1432341).

The spelling of 143230140 in words is "one hundred forty-three million, two hundred thirty thousand, one hundred forty".