140781843943 has 8 divisors (see below), whose sum is σ = 153112319136. Its totient is φ = 128665812000.

The previous prime is 140781843911. The next prime is 140781843959. The reversal of 140781843943 is 349348187041.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140781843943 - 2⁵ = 140781843911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140781843973) 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, 53609443 + ... + 53612068.

It is an arithmetic number, because the mean of its divisors is an integer number (19139039892).

Almost surely, 2^140781843943 is an apocalyptic number.

140781843943 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

140781843943 is a deficient number, since it is larger than the sum of its proper divisors (12330475193).

140781843943 is a wasteful number, since it uses less digits than its factorization.

140781843943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107221625.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The spelling of 140781843943 in words is "one hundred forty billion, seven hundred eighty-one million, eight hundred forty-three thousand, nine hundred forty-three".