100143443 has 8 divisors (see below), whose sum is σ = 102975936. Its totient is φ = 97329600.

The previous prime is 100143397. The next prime is 100143457. The reversal of 100143443 is 344341001.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100143443 - 2²⁰ = 99094867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100143143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6605 + ... + 15617.

It is an arithmetic number, because the mean of its divisors is an integer number (12871992).

Almost surely, 2^100143443 is an apocalyptic number.

100143443 is a deficient number, since it is larger than the sum of its proper divisors (2832493).

100143443 is an equidigital number, since it uses as much as digits as its factorization.

100143443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9325.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 100143443 is about 10007.1695798562. The cubic root of 100143443 is about 464.3807118050.

Adding to 100143443 its reverse (344341001), we get a palindrome (444484444).

It can be divided in two parts, 1001 and 43443, that added together give a palindrome (44444).

The spelling of 100143443 in words is "one hundred million, one hundred forty-three thousand, four hundred forty-three".