206745106 has 4 divisors (see below), whose sum is σ = 310117662. Its totient is φ = 103372552.

The previous prime is 206745067. The next prime is 206745163. The reversal of 206745106 is 601547602.

It is a happy number.

206745106 is digitally balanced in base 3, 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., 198387225 + 8357881 = 14085^2 + 2891^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51686275 + ... + 51686278.

Almost surely, 2^206745106 is an apocalyptic number.

206745106 is a deficient number, since it is larger than the sum of its proper divisors (103372556).

206745106 is a wasteful number, since it uses less digits than its factorization.

206745106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103372555.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 206745106 is about 14378.6336624868. The cubic root of 206745106 is about 591.3052649601.

The spelling of 206745106 in words is "two hundred six million, seven hundred forty-five thousand, one hundred six".