140001241421 has 8 divisors (see below), whose sum is σ = 142875503640. Its totient is φ = 137135598912.

The previous prime is 140001241381. The next prime is 140001241481. The reversal of 140001241421 is 124142100041.

It can be written as a sum of positive squares in 4 ways, for example, as 1404375625 + 138596865796 = 37475^2 + 372286^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140001241421 - 2²² = 139997047117 is a prime.

It is a super-2 number, since 2×140001241421² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 140001241393 and 140001241402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140001241481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2122106 + ... + 2187083.

It is an arithmetic number, because the mean of its divisors is an integer number (17859437955).

Almost surely, 2^140001241421 is an apocalyptic number.

It is an amenable number.

140001241421 is a deficient number, since it is larger than the sum of its proper divisors (2874262219).

140001241421 is an equidigital number, since it uses as much as digits as its factorization.

140001241421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4309855.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 140001241421 its reverse (124142100041), we get a palindrome (264143341462).

The spelling of 140001241421 in words is "one hundred forty billion, one million, two hundred forty-one thousand, four hundred twenty-one".