140421550242 has 16 divisors (see below), whose sum is σ = 281879425152. Its totient is φ = 46634462640.

The previous prime is 140421550229. The next prime is 140421550249. The reversal of 140421550242 is 242055124041.

It is not an unprimeable number, because it can be changed into a prime (140421550249) 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, 43178433 + ... + 43181684.

It is an arithmetic number, because the mean of its divisors is an integer number (17617464072).

Almost surely, 2^140421550242 is an apocalyptic number.

140421550242 is an abundant number, since it is smaller than the sum of its proper divisors (141457874910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140421550242 is a wasteful number, since it uses less digits than its factorization.

140421550242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86360393.

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 140421550242 its reverse (242055124041), we get a palindrome (382476674283).

The spelling of 140421550242 in words is "one hundred forty billion, four hundred twenty-one million, five hundred fifty thousand, two hundred forty-two".