140143747438 has 8 divisors (see below), whose sum is σ = 211554574632. Its totient is φ = 69625555896.

The previous prime is 140143747423. The next prime is 140143747439. The reversal of 140143747438 is 834747341041.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140143747439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223158520 + ... + 223159147.

It is an arithmetic number, because the mean of its divisors is an integer number (26444321829).

Almost surely, 2^140143747438 is an apocalyptic number.

140143747438 is a deficient number, since it is larger than the sum of its proper divisors (71410827194).

140143747438 is a wasteful number, since it uses less digits than its factorization.

140143747438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446317826.

The product of its (nonzero) digits is 903168, while the sum is 46.

The spelling of 140143747438 in words is "one hundred forty billion, one hundred forty-three million, seven hundred forty-seven thousand, four hundred thirty-eight".