143144505609 has 24 divisors (see below), whose sum is σ = 222082323840. Its totient is φ = 81773917344.

The previous prime is 143144505521. The next prime is 143144505617. The reversal of 143144505609 is 906505441341.

It is a happy number.

It is not a de Polignac number, because 143144505609 - 2⁸ = 143144505353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (143144505649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 396352 + ... + 665870.

It is an arithmetic number, because the mean of its divisors is an integer number (9253430160).

Almost surely, 2^143144505609 is an apocalyptic number.

It is an amenable number.

143144505609 is a deficient number, since it is larger than the sum of its proper divisors (78937818231).

143144505609 is a wasteful number, since it uses less digits than its factorization.

143144505609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273149 (or 273142 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 42.

The spelling of 143144505609 in words is "one hundred forty-three billion, one hundred forty-four million, five hundred five thousand, six hundred nine".