206048091 has 4 divisors (see below), whose sum is σ = 274730792. Its totient is φ = 137365392.

The previous prime is 206048039. The next prime is 206048111. The reversal of 206048091 is 190840602.

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

It is not a de Polignac number, because 206048091 - 2¹⁵ = 206015323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (206048021) 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, 34341346 + ... + 34341351.

It is an arithmetic number, because the mean of its divisors is an integer number (68682698).

Almost surely, 2^206048091 is an apocalyptic number.

206048091 is a deficient number, since it is larger than the sum of its proper divisors (68682701).

206048091 is an equidigital number, since it uses as much as digits as its factorization.

206048091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68682700.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 206048091 is about 14354.3753260112. The cubic root of 206048091 is about 590.6400131342.

Adding to 206048091 its reverse (190840602), we get a palindrome (396888693).

The spelling of 206048091 in words is "two hundred six million, forty-eight thousand, ninety-one".