205513067 has 2 divisors, whose sum is σ = 205513068. Its totient is φ = 205513066.

The previous prime is 205513019. The next prime is 205513079. The reversal of 205513067 is 760315502.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205513067 is a prime.

It is not a weakly prime, because it can be changed into another prime (205513097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102756533 + 102756534.

It is an arithmetic number, because the mean of its divisors is an integer number (102756534).

Almost surely, 2^205513067 is an apocalyptic number.

205513067 is a deficient number, since it is larger than the sum of its proper divisors (1).

205513067 is an equidigital number, since it uses as much as digits as its factorization.

205513067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 205513067 is about 14335.7269435491. The cubic root of 205513067 is about 590.1283518515.

Adding to 205513067 its reverse (760315502), we get a palindrome (965828569).

The spelling of 205513067 in words is "two hundred five million, five hundred thirteen thousand, sixty-seven".