206495 has 4 divisors (see below), whose sum is σ = 247800. Its totient is φ = 165192.

The previous prime is 206489. The next prime is 206501. The reversal of 206495 is 594602.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (206489) and next prime (206501).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206495 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 206495.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20645 + ... + 20654.

It is an arithmetic number, because the mean of its divisors is an integer number (61950).

2²⁰⁶⁴⁹⁵ is an apocalyptic number.

206495 is a deficient number, since it is larger than the sum of its proper divisors (41305).

206495 is an equidigital number, since it uses as much as digits as its factorization.

206495 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41304.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 206495 is about 454.4172091812. The cubic root of 206495 is about 59.1066728608.

The spelling of 206495 in words is "two hundred six thousand, four hundred ninety-five".