140815420742 has 4 divisors (see below), whose sum is σ = 211223131116. Its totient is φ = 70407710370.

The previous prime is 140815420741. The next prime is 140815420751. The reversal of 140815420742 is 247024518041.

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

It is a junction number, because it is equal to n+sod(n) for n = 140815420696 and 140815420705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140815420741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35203855184 + ... + 35203855187.

It is an arithmetic number, because the mean of its divisors is an integer number (52805782779).

Almost surely, 2^140815420742 is an apocalyptic number.

140815420742 is a deficient number, since it is larger than the sum of its proper divisors (70407710374).

140815420742 is an equidigital number, since it uses as much as digits as its factorization.

140815420742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70407710373.

The product of its (nonzero) digits is 71680, while the sum is 38.

Adding to 140815420742 its reverse (247024518041), we get a palindrome (387839938783).

The spelling of 140815420742 in words is "one hundred forty billion, eight hundred fifteen million, four hundred twenty thousand, seven hundred forty-two".