140543140 has 24 divisors (see below), whose sum is σ = 295840440. Its totient is φ = 56083968.

The previous prime is 140543129. The next prime is 140543141. The reversal of 140543140 is 41345041.

It can be written as a sum of positive squares in 4 ways, for example, as 22733824 + 117809316 = 4768^2 + 10854^2 .

It is not an unprimeable number, because it can be changed into a prime (140543141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 546 + ... + 16774.

It is an arithmetic number, because the mean of its divisors is an integer number (12326685).

Almost surely, 2^140543140 is an apocalyptic number.

140543140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140543140 is an abundant number, since it is smaller than the sum of its proper divisors (155297300).

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

140543140 is a wasteful number, since it uses less digits than its factorization.

140543140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16671 (or 16669 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 140543140 is about 11855.0892025324. The cubic root of 140543140 is about 519.9200320815.

Adding to 140543140 its reverse (41345041), we get a palindrome (181888181).

The spelling of 140543140 in words is "one hundred forty million, five hundred forty-three thousand, one hundred forty".