143145636 has 12 divisors (see below), whose sum is σ = 334006512. Its totient is φ = 47715208.

The previous prime is 143145619. The next prime is 143145643. The reversal of 143145636 is 636541341.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 143145597 and 143145606.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5964390 + ... + 5964413.

It is an arithmetic number, because the mean of its divisors is an integer number (27833876).

Almost surely, 2^143145636 is an apocalyptic number.

It is an amenable number.

143145636 is an abundant number, since it is smaller than the sum of its proper divisors (190860876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143145636 is a wasteful number, since it uses less digits than its factorization.

143145636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11928810 (or 11928808 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 143145636 is about 11964.3485405600. The cubic root of 143145636 is about 523.1096168302.

Adding to 143145636 its reverse (636541341), we get a palindrome (779686977).

The spelling of 143145636 in words is "one hundred forty-three million, one hundred forty-five thousand, six hundred thirty-six".