204122743 has 8 divisors (see below), whose sum is σ = 223122960. Its totient is φ = 185196480.

The previous prime is 204122741. The next prime is 204122773. The reversal of 204122743 is 347221402.

It is a happy number.

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 204122743 - 2¹ = 204122741 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 (204122741) 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, 12630 + ... + 23827.

It is an arithmetic number, because the mean of its divisors is an integer number (27890370).

Almost surely, 2^204122743 is an apocalyptic number.

204122743 is a deficient number, since it is larger than the sum of its proper divisors (19000217).

204122743 is a wasteful number, since it uses less digits than its factorization.

204122743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36977.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 204122743 is about 14287.1530754031. The cubic root of 204122743 is about 588.7945732516.

The spelling of 204122743 in words is "two hundred four million, one hundred twenty-two thousand, seven hundred forty-three".