143144789 has 4 divisors (see below), whose sum is σ = 143256960. Its totient is φ = 143032620.

The previous prime is 143144779. The next prime is 143144809. The reversal of 143144789 is 987441341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 987441341 = 337 ⋅2930093.

It is a cyclic number.

It is not a de Polignac number, because 143144789 - 2⁴ = 143144773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143144719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54149 + ... + 56730.

It is an arithmetic number, because the mean of its divisors is an integer number (35814240).

Almost surely, 2^143144789 is an apocalyptic number.

It is an amenable number.

143144789 is a deficient number, since it is larger than the sum of its proper divisors (112171).

143144789 is a wasteful number, since it uses less digits than its factorization.

143144789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112170.

The product of its digits is 96768, while the sum is 41.

The square root of 143144789 is about 11964.3131436786. The cubic root of 143144789 is about 523.1085850727.

The spelling of 143144789 in words is "one hundred forty-three million, one hundred forty-four thousand, seven hundred eighty-nine".