143542140 has 96 divisors (see below), whose sum is σ = 466281984. Its totient is φ = 32313600.

The previous prime is 143542111. The next prime is 143542171. The reversal of 143542140 is 41245341.

143542140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 143542140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25590 + ... + 30690.

It is an arithmetic number, because the mean of its divisors is an integer number (4857104).

Almost surely, 2^143542140 is an apocalyptic number.

143542140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143542140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233140992).

143542140 is an abundant number, since it is smaller than the sum of its proper divisors (322739844).

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

143542140 is a wasteful number, since it uses less digits than its factorization.

143542140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5187 (or 5185 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 143542140 is about 11980.9073112181. The cubic root of 143542140 is about 523.5921646436.

Adding to 143542140 its reverse (41245341), we get a palindrome (184787481).

The spelling of 143542140 in words is "one hundred forty-three million, five hundred forty-two thousand, one hundred forty".