204051443 has 4 divisors (see below), whose sum is σ = 204827568. Its totient is φ = 203275320.

The previous prime is 204051437. The next prime is 204051451. The reversal of 204051443 is 344150402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344150402 = 2 ⋅172075201.

It is a cyclic number.

It is not a de Polignac number, because 204051443 - 2²⁰ = 203002867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204051403) 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, 387668 + ... + 388193.

It is an arithmetic number, because the mean of its divisors is an integer number (51206892).

Almost surely, 2^204051443 is an apocalyptic number.

204051443 is a deficient number, since it is larger than the sum of its proper divisors (776125).

204051443 is an equidigital number, since it uses as much as digits as its factorization.

204051443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776124.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 204051443 is about 14284.6576087773. The cubic root of 204051443 is about 588.7260100244.

The spelling of 204051443 in words is "two hundred four million, fifty-one thousand, four hundred forty-three".