140045201421 has 16 divisors (see below), whose sum is σ = 188876318400. Its totient is φ = 92289346688.

The previous prime is 140045201393. The next prime is 140045201437. The reversal of 140045201421 is 124102540041.

It is a cyclic number.

It is not a de Polignac number, because 140045201421 - 2¹⁰ = 140045200397 is a prime.

It is a super-3 number, since 3×140045201421³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 140045201391 and 140045201400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140045202421) 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, 939595 + ... + 1078391.

It is an arithmetic number, because the mean of its divisors is an integer number (11804769900).

Almost surely, 2^140045201421 is an apocalyptic number.

It is an amenable number.

140045201421 is a deficient number, since it is larger than the sum of its proper divisors (48831116979).

140045201421 is a wasteful number, since it uses less digits than its factorization.

140045201421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142668.

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 140045201421 its reverse (124102540041), we get a palindrome (264147741462).

The spelling of 140045201421 in words is "one hundred forty billion, forty-five million, two hundred one thousand, four hundred twenty-one".