140344542500 has 60 divisors (see below), whose sum is σ = 308180235132. Its totient is φ = 55904640000.

The previous prime is 140344542497. The next prime is 140344542521. The reversal of 140344542500 is 5245443041.

It can be written as a sum of positive squares in 10 ways, for example, as 106240794916 + 34103747584 = 325946^2 + 184672^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 486032 + ... + 718968.

Almost surely, 2^140344542500 is an apocalyptic number.

140344542500 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 140344542500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154090117566).

140344542500 is an abundant number, since it is smaller than the sum of its proper divisors (167835692632).

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

140344542500 is a wasteful number, since it uses less digits than its factorization.

140344542500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233202 (or 233185 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 140344542500 its reverse (5245443041), we get a palindrome (145589985541).

The spelling of 140344542500 in words is "one hundred forty billion, three hundred forty-four million, five hundred forty-two thousand, five hundred".