144285731443 has 4 divisors (see below), whose sum is σ = 164897978800. Its totient is φ = 123673484088.

The previous prime is 144285731441. The next prime is 144285731449. The reversal of 144285731443 is 344137582441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344137582441 = 19 ⋅18112504339.

It is not a de Polignac number, because 144285731443 - 2¹ = 144285731441 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144285731393 and 144285731402.

It is not an unprimeable number, because it can be changed into a prime (144285731441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10306123668 + ... + 10306123681.

It is an arithmetic number, because the mean of its divisors is an integer number (41224494700).

Almost surely, 2^144285731443 is an apocalyptic number.

144285731443 is a deficient number, since it is larger than the sum of its proper divisors (20612247357).

144285731443 is an equidigital number, since it uses as much as digits as its factorization.

144285731443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20612247356.

The product of its digits is 1290240, while the sum is 46.

The spelling of 144285731443 in words is "one hundred forty-four billion, two hundred eighty-five million, seven hundred thirty-one thousand, four hundred forty-three".