140414440231421 has 4 divisors (see below), whose sum is σ = 140775402803100. Its totient is φ = 140053477659744.

The previous prime is 140414440231361. The next prime is 140414440231423. The reversal of 140414440231421 is 124132044414041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53311697808196 + 87102742423225 = 7301486^2 + 9332885^2 .

It is a cyclic number.

It is not a de Polignac number, because 140414440231421 - 2¹⁰ = 140414440230397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140414440231423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180481285256 + ... + 180481286033.

It is an arithmetic number, because the mean of its divisors is an integer number (35193850700775).

Almost surely, 2^{140414440231421} is an apocalyptic number.

It is an amenable number.

140414440231421 is a deficient number, since it is larger than the sum of its proper divisors (360962571679).

140414440231421 is an equidigital number, since it uses as much as digits as its factorization.

140414440231421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360962571678.

The product of its (nonzero) digits is 49152, while the sum is 35.

Adding to 140414440231421 its reverse (124132044414041), we get a palindrome (264546484645462).

The spelling of 140414440231421 in words is "one hundred forty trillion, four hundred fourteen billion, four hundred forty million, two hundred thirty-one thousand, four hundred twenty-one".