204957061 has 4 divisors (see below), whose sum is σ = 205852300. Its totient is φ = 204061824.

The previous prime is 204957041. The next prime is 204957101. The reversal of 204957061 is 160759402.

204957061 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 can be written as a sum of positive squares in 2 ways, for example, as 114896961 + 90060100 = 10719^2 + 9490^2 .

It is a cyclic number.

It is not a de Polignac number, because 204957061 - 2¹⁹ = 204432773 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 (204957001) 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, 447276 + ... + 447733.

It is an arithmetic number, because the mean of its divisors is an integer number (51463075).

Almost surely, 2^204957061 is an apocalyptic number.

It is an amenable number.

204957061 is a deficient number, since it is larger than the sum of its proper divisors (895239).

204957061 is an equidigital number, since it uses as much as digits as its factorization.

204957061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895238.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 204957061 is about 14316.3214898241. The cubic root of 204957061 is about 589.5956829648.

It can be divided in two parts, 20495 and 7061, that added together give a square (27556 = 166²).

The spelling of 204957061 in words is "two hundred four million, nine hundred fifty-seven thousand, sixty-one".