206049 has 4 divisors (see below), whose sum is σ = 274736. Its totient is φ = 137364.

The previous prime is 206047. The next prime is 206051. The reversal of 206049 is 940602.

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 an interprime number because it is at equal distance from previous prime (206047) and next prime (206051).

It is not a de Polignac number, because 206049 - 2¹ = 206047 is a prime.

It is a D-number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (206047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34339 + ... + 34344.

It is an arithmetic number, because the mean of its divisors is an integer number (68684).

2²⁰⁶⁰⁴⁹ is an apocalyptic number.

It is an amenable number.

206049 is a deficient number, since it is larger than the sum of its proper divisors (68687).

206049 is an equidigital number, since it uses as much as digits as its factorization.

206049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68686.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 206049 is about 453.9262054563. The cubic root of 206049 is about 59.0640881687.

The spelling of 206049 in words is "two hundred six thousand, forty-nine".