144454422433 has 4 divisors (see below), whose sum is σ = 144738223380. Its totient is φ = 144170621488.

The previous prime is 144454422421. The next prime is 144454422443. The reversal of 144454422433 is 334224454441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 334224454441 = 13463 ⋅24825407.

It can be written as a sum of positive squares in 2 ways, for example, as 69033884049 + 75420538384 = 262743^2 + 274628^2 .

It is a cyclic number.

It is not a de Polignac number, because 144454422433 - 2²⁹ = 143917551521 is a prime.

It is a super-2 number, since 2×144454422433² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144454422443) 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 3 ways as a sum of consecutive naturals, for example, 141899710 + ... + 141900727.

It is an arithmetic number, because the mean of its divisors is an integer number (36184555845).

Almost surely, 2^144454422433 is an apocalyptic number.

It is an amenable number.

144454422433 is a deficient number, since it is larger than the sum of its proper divisors (283800947).

144454422433 is an equidigital number, since it uses as much as digits as its factorization.

144454422433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283800946.

The product of its digits is 737280, while the sum is 40.

Adding to 144454422433 its reverse (334224454441), we get a palindrome (478678876874).

The spelling of 144454422433 in words is "one hundred forty-four billion, four hundred fifty-four million, four hundred twenty-two thousand, four hundred thirty-three".