143545334413 has 18 divisors (see below), whose sum is σ = 159135881706. Its totient is φ = 129421629792.

The previous prime is 143545334407. The next prime is 143545334423. The reversal of 143545334413 is 314433545341.

It can be written as a sum of positive squares in 3 ways, for example, as 4044578409 + 139500756004 = 63597^2 + 373498^2 .

It is a de Polignac number, because none of the positive numbers 2^k-143545334413 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 (143545334423) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 82795 + ... + 542167.

It is an arithmetic number, because the mean of its divisors is an integer number (8840882317).

Almost surely, 2^143545334413 is an apocalyptic number.

143545334413 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

143545334413 is a deficient number, since it is larger than the sum of its proper divisors (15590547293).

143545334413 is an equidigital number, since it uses as much as digits as its factorization.

143545334413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459485 (or 459429 counting only the distinct ones).

The product of its digits is 518400, while the sum is 40.

Adding to 143545334413 its reverse (314433545341), we get a palindrome (457978879754).

The spelling of 143545334413 in words is "one hundred forty-three billion, five hundred forty-five million, three hundred thirty-four thousand, four hundred thirteen".