206162101 has 2 divisors, whose sum is σ = 206162102. Its totient is φ = 206162100.

The previous prime is 206162083. The next prime is 206162129. The reversal of 206162101 is 101261602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202379076 + 3783025 = 14226^2 + 1945^2 .

It is a cyclic number.

It is not a de Polignac number, because 206162101 - 2⁷ = 206161973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206162161) by changing a digit.

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 as a sum of consecutive naturals, namely, 103081050 + 103081051.

It is an arithmetic number, because the mean of its divisors is an integer number (103081051).

Almost surely, 2^206162101 is an apocalyptic number.

It is an amenable number.

206162101 is a deficient number, since it is larger than the sum of its proper divisors (1).

206162101 is an equidigital number, since it uses as much as digits as its factorization.

206162101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 206162101 is about 14358.3460398473. The cubic root of 206162101 is about 590.7489301860.

The spelling of 206162101 in words is "two hundred six million, one hundred sixty-two thousand, one hundred one".