204941257 has 2 divisors, whose sum is σ = 204941258. Its totient is φ = 204941256.

The previous prime is 204941251. The next prime is 204941333. The reversal of 204941257 is 752149402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200052736 + 4888521 = 14144^2 + 2211^2 .

It is a cyclic number.

It is not a de Polignac number, because 204941257 - 2⁷ = 204941129 is a prime.

It is not a weakly prime, because it can be changed into another prime (204941251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102470628 + 102470629.

It is an arithmetic number, because the mean of its divisors is an integer number (102470629).

Almost surely, 2^204941257 is an apocalyptic number.

It is an amenable number.

204941257 is a deficient number, since it is larger than the sum of its proper divisors (1).

204941257 is an equidigital number, since it uses as much as digits as its factorization.

204941257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 204941257 is about 14315.7695217547. The cubic root of 204941257 is about 589.5805282301.

The spelling of 204941257 in words is "two hundred four million, nine hundred forty-one thousand, two hundred fifty-seven".