144435340323313 has 4 divisors (see below), whose sum is σ = 155545751117428. Its totient is φ = 133324929529200.

The previous prime is 144435340323293. The next prime is 144435340323403. The reversal of 144435340323313 is 313323043534441.

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 21859065935424 + 122576274387889 = 4675368^2 + 11071417^2 .

It is a cyclic number.

It is not a de Polignac number, because 144435340323313 - 2¹³ = 144435340315121 is a prime.

It is a super-2 number, since 2×144435340323313² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144435340323313.

It is not an unprimeable number, because it can be changed into a prime (144435340323613) 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, 5555205397038 + ... + 5555205397063.

It is an arithmetic number, because the mean of its divisors is an integer number (38886437779357).

Almost surely, 2^{144435340323313} is an apocalyptic number.

144435340323313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

144435340323313 is a deficient number, since it is larger than the sum of its proper divisors (11110410794115).

144435340323313 is a wasteful number, since it uses less digits than its factorization.

144435340323313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11110410794114.

The product of its (nonzero) digits is 1866240, while the sum is 43.

Adding to 144435340323313 its reverse (313323043534441), we get a palindrome (457758383857754).

The spelling of 144435340323313 in words is "one hundred forty-four trillion, four hundred thirty-five billion, three hundred forty million, three hundred twenty-three thousand, three hundred thirteen".