140634141928 has 128 divisors (see below), whose sum is σ = 326830878720. Its totient is φ = 55360880640.

The previous prime is 140634141889. The next prime is 140634141929. The reversal of 140634141928 is 829141436041.

140634141928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (140634141929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9629800 + ... + 9644392.

It is an arithmetic number, because the mean of its divisors is an integer number (2553366240).

Almost surely, 2^140634141928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140634141928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163415439360).

140634141928 is an abundant number, since it is smaller than the sum of its proper divisors (186196736792).

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

140634141928 is a wasteful number, since it uses less digits than its factorization.

140634141928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14867 (or 14863 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

Adding to 140634141928 its reverse (829141436041), we get a palindrome (969775577969).

The spelling of 140634141928 in words is "one hundred forty billion, six hundred thirty-four million, one hundred forty-one thousand, nine hundred twenty-eight".