143172873 has 16 divisors (see below), whose sum is σ = 214298560. Its totient is φ = 94462848.

The previous prime is 143172871. The next prime is 143172877. The reversal of 143172873 is 378271341.

It is not a de Polignac number, because 143172873 - 2¹ = 143172871 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (143172871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24715 + ... + 29952.

It is an arithmetic number, because the mean of its divisors is an integer number (13393660).

Almost surely, 2^143172873 is an apocalyptic number.

It is an amenable number.

143172873 is a deficient number, since it is larger than the sum of its proper divisors (71125687).

143172873 is an equidigital number, since it uses as much as digits as its factorization.

143172873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54773 (or 54767 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 143172873 is about 11965.4867431292. The cubic root of 143172873 is about 523.1427929098.

The spelling of 143172873 in words is "one hundred forty-three million, one hundred seventy-two thousand, eight hundred seventy-three".