204100143 has 16 divisors (see below), whose sum is σ = 294359520. Its totient is φ = 125046144.

The previous prime is 204100139. The next prime is 204100159. The reversal of 204100143 is 341001402.

It is not a de Polignac number, because 204100143 - 2² = 204100139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204100943) 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 15 ways as a sum of consecutive naturals, for example, 2496 + ... + 20357.

It is an arithmetic number, because the mean of its divisors is an integer number (18397470).

Almost surely, 2^204100143 is an apocalyptic number.

204100143 is a deficient number, since it is larger than the sum of its proper divisors (90259377).

204100143 is a wasteful number, since it uses less digits than its factorization.

204100143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23098.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 204100143 is about 14286.3621331674. The cubic root of 204100143 is about 588.7728424565.

Adding to 204100143 its reverse (341001402), we get a palindrome (545101545).

The spelling of 204100143 in words is "two hundred four million, one hundred thousand, one hundred forty-three".