206106449 has 2 divisors, whose sum is σ = 206106450. Its totient is φ = 206106448.

The previous prime is 206106443. The next prime is 206106493. The reversal of 206106449 is 944601602.

It is a happy number.

206106449 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 103388224 + 102718225 = 10168^2 + 10135^2 .

It is a cyclic number.

It is not a de Polignac number, because 206106449 - 2²⁰ = 205057873 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (206106443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103053224 + 103053225.

It is an arithmetic number, because the mean of its divisors is an integer number (103053225).

Almost surely, 2^206106449 is an apocalyptic number.

It is an amenable number.

206106449 is a deficient number, since it is larger than the sum of its proper divisors (1).

206106449 is an equidigital number, since it uses as much as digits as its factorization.

206106449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 206106449 is about 14356.4079421003. The cubic root of 206106449 is about 590.6957692381.

The spelling of 206106449 in words is "two hundred six million, one hundred six thousand, four hundred forty-nine".