100003143 has 8 divisors (see below), whose sum is σ = 134029168. Its totient is φ = 66322944.

The previous prime is 100003091. The next prime is 100003151. The reversal of 100003143 is 341300001.

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

It is not a de Polignac number, because 100003143 - 2¹⁸ = 99740999 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 (100003153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85780 + ... + 86937.

It is an arithmetic number, because the mean of its divisors is an integer number (16753646).

Almost surely, 2^100003143 is an apocalyptic number.

100003143 is a deficient number, since it is larger than the sum of its proper divisors (34026025).

100003143 is a wasteful number, since it uses less digits than its factorization.

100003143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172913.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 100003143 is about 10000.1571487652. The cubic root of 100003143 is about 464.1637461482.

Adding to 100003143 its reverse (341300001), we get a palindrome (441303144).

The spelling of 100003143 in words is "one hundred million, three thousand, one hundred forty-three".