100143073 has 8 divisors (see below), whose sum is σ = 106203528. Its totient is φ = 94101504.

The previous prime is 100143059. The next prime is 100143097. The reversal of 100143073 is 370341001.

It can be written as a sum of positive squares in 4 ways, for example, as 37859409 + 62283664 = 6153^2 + 7892^2 .

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 100143073 - 2⁹ = 100142561 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 100143073.

It is not an unprimeable number, because it can be changed into a prime (100143773) 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, 7065 + ... + 15817.

It is an arithmetic number, because the mean of its divisors is an integer number (13275441).

Almost surely, 2^100143073 is an apocalyptic number.

It is an amenable number.

100143073 is a deficient number, since it is larger than the sum of its proper divisors (6060455).

100143073 is an equidigital number, since it uses as much as digits as its factorization.

100143073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9443.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 100143073 is about 10007.1510930934. The cubic root of 100143073 is about 464.3801398884.

Adding to 100143073 its reverse (370341001), we get a palindrome (470484074).

The spelling of 100143073 in words is "one hundred million, one hundred forty-three thousand, seventy-three".