206406136 has 32 divisors (see below), whose sum is σ = 398260800. Its totient is φ = 100226560.

The previous prime is 206406119. The next prime is 206406157. The reversal of 206406136 is 631604602.

It is a congruent number.

It is an unprimeable number.

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, 77076 + ... + 79708.

It is an arithmetic number, because the mean of its divisors is an integer number (12445650).

Almost surely, 2^206406136 is an apocalyptic number.

It is an amenable number.

206406136 is a deficient number, since it is larger than the sum of its proper divisors (191854664).

206406136 is a wasteful number, since it uses less digits than its factorization.

206406136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2919 (or 2915 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 206406136 is about 14366.8415457260. The cubic root of 206406136 is about 590.9819289922.

The spelling of 206406136 in words is "two hundred six million, four hundred six thousand, one hundred thirty-six".