143945140553 has 16 divisors (see below), whose sum is σ = 153532486800. Its totient is φ = 134483920896.

The previous prime is 143945140529. The next prime is 143945140601. The reversal of 143945140553 is 355041549341.

It can be written as a sum of positive squares in 8 ways, for example, as 5677923904 + 138267216649 = 75352^2 + 371843^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143945140553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143945140753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2774075 + ... + 2825487.

It is an arithmetic number, because the mean of its divisors is an integer number (9595780425).

Almost surely, 2^143945140553 is an apocalyptic number.

It is an amenable number.

143945140553 is a deficient number, since it is larger than the sum of its proper divisors (9587346247).

143945140553 is a wasteful number, since it uses less digits than its factorization.

143945140553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52636.

The product of its (nonzero) digits is 648000, while the sum is 44.

Adding to 143945140553 its reverse (355041549341), we get a palindrome (498986689894).

The spelling of 143945140553 in words is "one hundred forty-three billion, nine hundred forty-five million, one hundred forty thousand, five hundred fifty-three".