205541093 has 2 divisors, whose sum is σ = 205541094. Its totient is φ = 205541092.

The previous prime is 205541081. The next prime is 205541111. The reversal of 205541093 is 390145502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103591684 + 101949409 = 10178^2 + 10097^2 .

It is a cyclic number.

It is not a de Polignac number, because 205541093 - 2⁶ = 205541029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205541023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102770546 + 102770547.

It is an arithmetic number, because the mean of its divisors is an integer number (102770547).

Almost surely, 2^205541093 is an apocalyptic number.

It is an amenable number.

205541093 is a deficient number, since it is larger than the sum of its proper divisors (1).

205541093 is an equidigital number, since it uses as much as digits as its factorization.

205541093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 205541093 is about 14336.7043981523. The cubic root of 205541093 is about 590.1551760752.

Adding to 205541093 its reverse (390145502), we get a palindrome (595686595).

The spelling of 205541093 in words is "two hundred five million, five hundred forty-one thousand, ninety-three".