140639013140 has 48 divisors (see below), whose sum is σ = 297140359824. Its totient is φ = 55913625600.

The previous prime is 140639013127. The next prime is 140639013157. The reversal of 140639013140 is 41310936041.

It can be written as a sum of positive squares in 8 ways, for example, as 8094960784 + 132544052356 = 89972^2 + 364066^2 .

It is a junction number, because it is equal to n+sod(n) for n = 140639013097 and 140639013106.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 4005260 + ... + 4040220.

It is an arithmetic number, because the mean of its divisors is an integer number (6190424163).

Almost surely, 2^140639013140 is an apocalyptic number.

140639013140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140639013140 is an abundant number, since it is smaller than the sum of its proper divisors (156501346684).

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

140639013140 is a wasteful number, since it uses less digits than its factorization.

140639013140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36188 (or 36186 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 32.

Adding to 140639013140 its reverse (41310936041), we get a palindrome (181949949181).

The spelling of 140639013140 in words is "one hundred forty billion, six hundred thirty-nine million, thirteen thousand, one hundred forty".