140414430443421 has 4 divisors (see below), whose sum is σ = 187219240591232. Its totient is φ = 93609620295612.

The previous prime is 140414430443299. The next prime is 140414430443491. The reversal of 140414430443421 is 124344034414041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 140414430443421 - 2³⁴ = 140397250574237 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140414430443421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140414430443491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23402405073901 + ... + 23402405073906.

It is an arithmetic number, because the mean of its divisors is an integer number (46804810147808).

Almost surely, 2^{140414430443421} is an apocalyptic number.

It is an amenable number.

140414430443421 is a deficient number, since it is larger than the sum of its proper divisors (46804810147811).

140414430443421 is an equidigital number, since it uses as much as digits as its factorization.

140414430443421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46804810147810.

The product of its (nonzero) digits is 294912, while the sum is 39.

Adding to 140414430443421 its reverse (124344034414041), we get a palindrome (264758464857462).

The spelling of 140414430443421 in words is "one hundred forty trillion, four hundred fourteen billion, four hundred thirty million, four hundred forty-three thousand, four hundred twenty-one".