205068997 has 4 divisors (see below), whose sum is σ = 234364576. Its totient is φ = 175773420.

The previous prime is 205068979. The next prime is 205069027. The reversal of 205068997 is 799860502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 205068997 - 2²³ = 196680389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205068907) 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 in 3 ways as a sum of consecutive naturals, for example, 14647779 + ... + 14647792.

It is an arithmetic number, because the mean of its divisors is an integer number (58591144).

Almost surely, 2^205068997 is an apocalyptic number.

It is an amenable number.

205068997 is a deficient number, since it is larger than the sum of its proper divisors (29295579).

205068997 is an equidigital number, since it uses as much as digits as its factorization.

205068997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29295578.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 205068997 is about 14320.2303403262. The cubic root of 205068997 is about 589.7029980793.

The spelling of 205068997 in words is "two hundred five million, sixty-eight thousand, nine hundred ninety-seven".