143135643 has 16 divisors (see below), whose sum is σ = 218278656. Its totient is φ = 81729120.

The previous prime is 143135617. The next prime is 143135687. The reversal of 143135643 is 346531341.

It is not a de Polignac number, because 143135643 - 2⁵ = 143135611 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143135643.

It is not an unprimeable number, because it can be changed into a prime (143135743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51805 + ... + 54497.

It is an arithmetic number, because the mean of its divisors is an integer number (13642416).

Almost surely, 2^143135643 is an apocalyptic number.

143135643 is a deficient number, since it is larger than the sum of its proper divisors (75143013).

143135643 is a wasteful number, since it uses less digits than its factorization.

143135643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5234.

The product of its digits is 12960, while the sum is 30.

The square root of 143135643 is about 11963.9309175538. The cubic root of 143135643 is about 523.0974437823.

Adding to 143135643 its reverse (346531341), we get a palindrome (489666984).

The spelling of 143135643 in words is "one hundred forty-three million, one hundred thirty-five thousand, six hundred forty-three".