205444049 has 2 divisors, whose sum is σ = 205444050. Its totient is φ = 205444048.

The previous prime is 205444009. The next prime is 205444081. The reversal of 205444049 is 940444502.

It is an a-pointer prime, because the next prime (205444081) can be obtained adding 205444049 to its sum of digits (32).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135303424 + 70140625 = 11632^2 + 8375^2 .

It is a cyclic number.

It is not a de Polignac number, because 205444049 - 2¹² = 205439953 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (205444009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102722024 + 102722025.

It is an arithmetic number, because the mean of its divisors is an integer number (102722025).

Almost surely, 2^205444049 is an apocalyptic number.

It is an amenable number.

205444049 is a deficient number, since it is larger than the sum of its proper divisors (1).

205444049 is an equidigital number, since it uses as much as digits as its factorization.

205444049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 205444049 is about 14333.3195387531. The cubic root of 205444049 is about 590.0622829969.

The spelling of 205444049 in words is "two hundred five million, four hundred forty-four thousand, forty-nine".