106340209 has 2 divisors, whose sum is σ = 106340210. Its totient is φ = 106340208.

The previous prime is 106340177. The next prime is 106340237. The reversal of 106340209 is 902043601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61074225 + 45265984 = 7815^2 + 6728^2 .

It is a cyclic number.

It is not a de Polignac number, because 106340209 - 2⁵ = 106340177 is a prime.

It is a super-2 number, since 2×106340209² = 22616480100327362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (106340309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53170104 + 53170105.

It is an arithmetic number, because the mean of its divisors is an integer number (53170105).

Almost surely, 2^106340209 is an apocalyptic number.

It is an amenable number.

106340209 is a deficient number, since it is larger than the sum of its proper divisors (1).

106340209 is an equidigital number, since it uses as much as digits as its factorization.

106340209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 106340209 is about 10312.1389148905. The cubic root of 106340209 is about 473.7681232175.

The spelling of 106340209 in words is "one hundred six million, three hundred forty thousand, two hundred nine".