206670149 has 8 divisors (see below), whose sum is σ = 243813888. Its totient is φ = 171431280.

The previous prime is 206670131. The next prime is 206670151. The reversal of 206670149 is 941076602.

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 206670149 - 2⁸ = 206669893 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 (206670109) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 475982 + ... + 476415.

It is an arithmetic number, because the mean of its divisors is an integer number (30476736).

Almost surely, 2^206670149 is an apocalyptic number.

It is an amenable number.

206670149 is a deficient number, since it is larger than the sum of its proper divisors (37143739).

206670149 is an equidigital number, since it uses as much as digits as its factorization.

206670149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952435.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 206670149 is about 14376.0268850611. The cubic root of 206670149 is about 591.2337955919.

The spelling of 206670149 in words is "two hundred six million, six hundred seventy thousand, one hundred forty-nine".