144453041134421 has 4 divisors (see below), whose sum is σ = 144453278679372. Its totient is φ = 144452803589472.

The previous prime is 144453041134417. The next prime is 144453041134459. The reversal of 144453041134421 is 124431140354441.

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 79366467993796 + 65086573140625 = 8908786^2 + 8067625^2 .

It is a cyclic number.

It is not a de Polignac number, because 144453041134421 - 2² = 144453041134417 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 (144453041134411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117857966 + ... + 119077311.

It is an arithmetic number, because the mean of its divisors is an integer number (36113319669843).

Almost surely, 2^{144453041134421} is an apocalyptic number.

It is an amenable number.

144453041134421 is a deficient number, since it is larger than the sum of its proper divisors (237544951).

144453041134421 is an equidigital number, since it uses as much as digits as its factorization.

144453041134421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237544950.

The product of its (nonzero) digits is 368640, while the sum is 41.

Adding to 144453041134421 its reverse (124431140354441), we get a palindrome (268884181488862).

The spelling of 144453041134421 in words is "one hundred forty-four trillion, four hundred fifty-three billion, forty-one million, one hundred thirty-four thousand, four hundred twenty-one".