206118849 has 8 divisors (see below), whose sum is σ = 281528352. Its totient is φ = 134060960.

The previous prime is 206118833. The next prime is 206118851. The reversal of 206118849 is 948811602.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 206118849 - 2⁴ = 206118833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (206116849) 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 7 ways as a sum of consecutive naturals, for example, 837759 + ... + 838004.

It is an arithmetic number, because the mean of its divisors is an integer number (35191044).

Almost surely, 2^206118849 is an apocalyptic number.

It is an amenable number.

206118849 is a deficient number, since it is larger than the sum of its proper divisors (75409503).

206118849 is a wasteful number, since it uses less digits than its factorization.

206118849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675807.

The product of its (nonzero) digits is 27648, while the sum is 39.

The square root of 206118849 is about 14356.8397985072. The cubic root of 206118849 is about 590.7076150273.

It can be divided in two parts, 2061 and 18849, that added together give a triangular number (20910 = T₂₀₄).

The spelling of 206118849 in words is "two hundred six million, one hundred eighteen thousand, eight hundred forty-nine".