140242316651 has 4 divisors (see below), whose sum is σ = 140624448672. Its totient is φ = 139860184632.

The previous prime is 140242316647. The next prime is 140242316653. The reversal of 140242316651 is 156613242041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140242316651 - 2² = 140242316647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140242316653) 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, 191065460 + ... + 191066193.

It is an arithmetic number, because the mean of its divisors is an integer number (35156112168).

Almost surely, 2^140242316651 is an apocalyptic number.

140242316651 is a deficient number, since it is larger than the sum of its proper divisors (382132021).

140242316651 is an equidigital number, since it uses as much as digits as its factorization.

140242316651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382132020.

The product of its (nonzero) digits is 34560, while the sum is 35.

Adding to 140242316651 its reverse (156613242041), we get a palindrome (296855558692).

The spelling of 140242316651 in words is "one hundred forty billion, two hundred forty-two million, three hundred sixteen thousand, six hundred fifty-one".