140344121005 has 16 divisors (see below), whose sum is σ = 183912493248. Its totient is φ = 101963296000.

The previous prime is 140344121003. The next prime is 140344121009. The reversal of 140344121005 is 500121443041.

It is not a de Polignac number, because 140344121005 - 2¹ = 140344121003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140344121003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1260556 + ... + 1367365.

It is an arithmetic number, because the mean of its divisors is an integer number (11494530828).

Almost surely, 2^140344121005 is an apocalyptic number.

It is an amenable number.

140344121005 is a deficient number, since it is larger than the sum of its proper divisors (43568372243).

140344121005 is a wasteful number, since it uses less digits than its factorization.

140344121005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2628908.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 140344121005 its reverse (500121443041), we get a palindrome (640465564046).

The spelling of 140344121005 in words is "one hundred forty billion, three hundred forty-four million, one hundred twenty-one thousand, five".