140252043136 has 64 divisors (see below), whose sum is σ = 288834134400. Its totient is φ = 67766814720.

The previous prime is 140252043131. The next prime is 140252043143. The reversal of 140252043136 is 631340252041.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 140252043098 and 140252043107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140252043131) 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, 2788386 + ... + 2838238.

It is an arithmetic number, because the mean of its divisors is an integer number (4513033350).

Almost surely, 2^140252043136 is an apocalyptic number.

140252043136 is a gapful number since it is divisible by the number (16) 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 140252043136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144417067200).

140252043136 is an abundant number, since it is smaller than the sum of its proper divisors (148582091264).

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

140252043136 is an equidigital number, since it uses as much as digits as its factorization.

140252043136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50607 (or 50595 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 140252043136 its reverse (631340252041), we get a palindrome (771592295177).

The spelling of 140252043136 in words is "one hundred forty billion, two hundred fifty-two million, forty-three thousand, one hundred thirty-six".