143105636 has 12 divisors (see below), whose sum is σ = 250575612. Its totient is φ = 71512608.

The previous prime is 143105617. The next prime is 143105639. The reversal of 143105636 is 636501341.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 44222500 + 98883136 = 6650^2 + 9944^2 .

It is a junction number, because it is equal to n+sod(n) for n = 143105599 and 143105608.

It is not an unprimeable number, because it can be changed into a prime (143105639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1175 + ... + 16958.

It is an arithmetic number, because the mean of its divisors is an integer number (20881301).

Almost surely, 2^143105636 is an apocalyptic number.

It is an amenable number.

143105636 is a deficient number, since it is larger than the sum of its proper divisors (107469976).

143105636 is a wasteful number, since it uses less digits than its factorization.

143105636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20110 (or 20108 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 143105636 is about 11962.6767907521. The cubic root of 143105636 is about 523.0608871248.

Adding to 143105636 its reverse (636501341), we get a palindrome (779606977).

The spelling of 143105636 in words is "one hundred forty-three million, one hundred five thousand, six hundred thirty-six".