143223775 has 12 divisors (see below), whose sum is σ = 177747552. Its totient is φ = 114482240.

The previous prime is 143223727. The next prime is 143223809. The reversal of 143223775 is 577322341.

It is a de Polignac number, because none of the positive numbers 2^k-143223775 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 143223775.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50187 + ... + 52963.

It is an arithmetic number, because the mean of its divisors is an integer number (14812296).

Almost surely, 2^143223775 is an apocalyptic number.

143223775 is a deficient number, since it is larger than the sum of its proper divisors (34523777).

143223775 is a wasteful number, since it uses less digits than its factorization.

143223775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4850 (or 4845 counting only the distinct ones).

The product of its digits is 35280, while the sum is 34.

The square root of 143223775 is about 11967.6135883475. The cubic root of 143223775 is about 523.2047829100.

The spelling of 143223775 in words is "one hundred forty-three million, two hundred twenty-three thousand, seven hundred seventy-five".