204745741 has 4 divisors (see below), whose sum is σ = 206050012. Its totient is φ = 203441472.

The previous prime is 204745733. The next prime is 204745777. The reversal of 204745741 is 147547402.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 147547402 = 2 ⋅73773701.

It can be written as a sum of positive squares in 2 ways, for example, as 16370116 + 188375625 = 4046^2 + 13725^2 .

It is a cyclic number.

It is not a de Polignac number, because 204745741 - 2³ = 204745733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204745697 and 204745706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204745781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651900 + ... + 652213.

It is an arithmetic number, because the mean of its divisors is an integer number (51512503).

Almost surely, 2^204745741 is an apocalyptic number.

It is an amenable number.

204745741 is a deficient number, since it is larger than the sum of its proper divisors (1304271).

204745741 is a wasteful number, since it uses less digits than its factorization.

204745741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304270.

The product of its (nonzero) digits is 31360, while the sum is 34.

The square root of 204745741 is about 14308.9391989763. The cubic root of 204745741 is about 589.3929800115.

The spelling of 204745741 in words is "two hundred four million, seven hundred forty-five thousand, seven hundred forty-one".