205290067 has 2 divisors, whose sum is σ = 205290068. Its totient is φ = 205290066.

The previous prime is 205290061. The next prime is 205290143. The reversal of 205290067 is 760092502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 205290067 - 2⁷ = 205289939 is a prime.

It is not a weakly prime, because it can be changed into another prime (205290061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102645033 + 102645034.

It is an arithmetic number, because the mean of its divisors is an integer number (102645034).

Almost surely, 2^205290067 is an apocalyptic number.

205290067 is a deficient number, since it is larger than the sum of its proper divisors (1).

205290067 is an equidigital number, since it uses as much as digits as its factorization.

205290067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 205290067 is about 14327.9470615996. The cubic root of 205290067 is about 589.9148273105.

The spelling of 205290067 in words is "two hundred five million, two hundred ninety thousand, sixty-seven".