100304143 has 4 divisors (see below), whose sum is σ = 102196728. Its totient is φ = 98411560.

The previous prime is 100304129. The next prime is 100304153. The reversal of 100304143 is 341403001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100304143 is a prime.

It is a super-2 number, since 2×100304143² = 20121842205928898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100304123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 946213 + ... + 946318.

It is an arithmetic number, because the mean of its divisors is an integer number (25549182).

Almost surely, 2^100304143 is an apocalyptic number.

100304143 is a deficient number, since it is larger than the sum of its proper divisors (1892585).

100304143 is an equidigital number, since it uses as much as digits as its factorization.

100304143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892584.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 100304143 is about 10015.1956046799. The cubic root of 100304143 is about 464.6289760158.

Adding to 100304143 its reverse (341403001), we get a palindrome (441707144).

The spelling of 100304143 in words is "one hundred million, three hundred four thousand, one hundred forty-three".