206401106 has 4 divisors (see below), whose sum is σ = 309601662. Its totient is φ = 103200552.

The previous prime is 206401067. The next prime is 206401127. The reversal of 206401106 is 601104602.

It is a happy number.

206401106 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 127351225 + 79049881 = 11285^2 + 8891^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51600275 + ... + 51600278.

Almost surely, 2^206401106 is an apocalyptic number.

206401106 is a deficient number, since it is larger than the sum of its proper divisors (103200556).

206401106 is a wasteful number, since it uses less digits than its factorization.

206401106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103200555.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 206401106 is about 14366.6664887858. Note that the first 3 decimals coincide. The cubic root of 206401106 is about 590.9771283222.

Adding to 206401106 its reverse (601104602), we get a palindrome (807505708).

The spelling of 206401106 in words is "two hundred six million, four hundred one thousand, one hundred six".