1143605603545 has 16 divisors (see below), whose sum is σ = 1399859452368. Its totient is φ = 896637623040.

The previous prime is 1143605603473. The next prime is 1143605603587. The reversal of 1143605603545 is 5453065063411.

It can be written as a sum of positive squares in 8 ways, for example, as 32038136064 + 1111567467481 = 178992^2 + 1054309^2 .

It is not a de Polignac number, because 1143605603545 - 2⁹ = 1143605603033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6683614 + ... + 6852583.

It is an arithmetic number, because the mean of its divisors is an integer number (87491215773).

Almost surely, 2^{1143605603545} is an apocalyptic number.

It is an amenable number.

1143605603545 is a deficient number, since it is larger than the sum of its proper divisors (256253848823).

1143605603545 is a wasteful number, since it uses less digits than its factorization.

1143605603545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13536540.

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 1143605603545 in words is "one trillion, one hundred forty-three billion, six hundred five million, six hundred three thousand, five hundred forty-five".