205601743 has 2 divisors, whose sum is σ = 205601744. Its totient is φ = 205601742.

The previous prime is 205601713. The next prime is 205601771. The reversal of 205601743 is 347106502.

It is an a-pointer prime, because the next prime (205601771) can be obtained adding 205601743 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 205601743 - 2¹³ = 205593551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205601713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102800871 + 102800872.

It is an arithmetic number, because the mean of its divisors is an integer number (102800872).

Almost surely, 2^205601743 is an apocalyptic number.

205601743 is a deficient number, since it is larger than the sum of its proper divisors (1).

205601743 is an equidigital number, since it uses as much as digits as its factorization.

205601743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 205601743 is about 14338.8194423390. The cubic root of 205601743 is about 590.2132170099.

The spelling of 205601743 in words is "two hundred five million, six hundred one thousand, seven hundred forty-three".