205054393 has 2 divisors, whose sum is σ = 205054394. Its totient is φ = 205054392.

The previous prime is 205054387. The next prime is 205054439. The reversal of 205054393 is 393450502.

205054393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 160858489 + 44195904 = 12683^2 + 6648^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205054393 is a prime.

It is not a weakly prime, because it can be changed into another prime (205054313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102527196 + 102527197.

It is an arithmetic number, because the mean of its divisors is an integer number (102527197).

Almost surely, 2^205054393 is an apocalyptic number.

It is an amenable number.

205054393 is a deficient number, since it is larger than the sum of its proper divisors (1).

205054393 is an equidigital number, since it uses as much as digits as its factorization.

205054393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 31.

The square root of 205054393 is about 14319.7204232485. The cubic root of 205054393 is about 589.6889991698.

The spelling of 205054393 in words is "two hundred five million, fifty-four thousand, three hundred ninety-three".