204351143 has 4 divisors (see below), whose sum is σ = 204420840. Its totient is φ = 204281448.

The previous prime is 204351131. The next prime is 204351149. The reversal of 204351143 is 341153402.

204351143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 204351143 - 2¹⁶ = 204285607 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 (204351149) 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, 30248 + ... + 36381.

It is an arithmetic number, because the mean of its divisors is an integer number (51105210).

Almost surely, 2^204351143 is an apocalyptic number.

204351143 is a deficient number, since it is larger than the sum of its proper divisors (69697).

204351143 is an equidigital number, since it uses as much as digits as its factorization.

204351143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69696.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 204351143 is about 14295.1440356507. The cubic root of 204351143 is about 589.0140989339.

The spelling of 204351143 in words is "two hundred four million, three hundred fifty-one thousand, one hundred forty-three".