144335423513 has 4 divisors (see below), whose sum is σ = 144336282420. Its totient is φ = 144334564608.

The previous prime is 144335423497. The next prime is 144335423563. The reversal of 144335423513 is 315324533441.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 315324533441 = 1879 ⋅167815079.

It can be written as a sum of positive squares in 2 ways, for example, as 24101941504 + 120233482009 = 155248^2 + 346747^2 .

It is a cyclic number.

It is not a de Polignac number, because 144335423513 - 2⁴ = 144335423497 is a prime.

It is a super-2 number, since 2×144335423513² (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 (144335423563) 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, 85628 + ... + 544061.

It is an arithmetic number, because the mean of its divisors is an integer number (36084070605).

Almost surely, 2^144335423513 is an apocalyptic number.

It is an amenable number.

144335423513 is a deficient number, since it is larger than the sum of its proper divisors (858907).

144335423513 is an equidigital number, since it uses as much as digits as its factorization.

144335423513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858906.

The product of its digits is 259200, while the sum is 38.

Adding to 144335423513 its reverse (315324533441), we get a palindrome (459659956954).

The spelling of 144335423513 in words is "one hundred forty-four billion, three hundred thirty-five million, four hundred twenty-three thousand, five hundred thirteen".