205357459 has 2 divisors, whose sum is σ = 205357460. Its totient is φ = 205357458.

The previous prime is 205357447. The next prime is 205357463. The reversal of 205357459 is 954753502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 205357459 - 2⁹ = 205356947 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (205357469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102678729 + 102678730.

It is an arithmetic number, because the mean of its divisors is an integer number (102678730).

Almost surely, 2^205357459 is an apocalyptic number.

205357459 is a deficient number, since it is larger than the sum of its proper divisors (1).

205357459 is an equidigital number, since it uses as much as digits as its factorization.

205357459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 189000, while the sum is 40.

The square root of 205357459 is about 14330.2986361066. The cubic root of 205357459 is about 589.9793720644.

The spelling of 205357459 in words is "two hundred five million, three hundred fifty-seven thousand, four hundred fifty-nine".