140643442315 has 32 divisors (see below), whose sum is σ = 175825048896. Its totient is φ = 107935825920.

The previous prime is 140643442309. The next prime is 140643442319. The reversal of 140643442315 is 513244346041.

It is not a de Polignac number, because 140643442315 - 2⁵ = 140643442283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140643442319) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2100555 + ... + 2166475.

It is an arithmetic number, because the mean of its divisors is an integer number (5494532778).

Almost surely, 2^140643442315 is an apocalyptic number.

140643442315 is a deficient number, since it is larger than the sum of its proper divisors (35181606581).

140643442315 is an equidigital number, since it uses as much as digits as its factorization.

140643442315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66159.

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 140643442315 its reverse (513244346041), we get a palindrome (653887788356).

The spelling of 140643442315 in words is "one hundred forty billion, six hundred forty-three million, four hundred forty-two thousand, three hundred fifteen".