106544209 has 2 divisors, whose sum is σ = 106544210. Its totient is φ = 106544208.

The previous prime is 106544203. The next prime is 106544213. The reversal of 106544209 is 902445601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105513984 + 1030225 = 10272^2 + 1015^2 .

It is a cyclic number.

It is not a de Polignac number, because 106544209 - 2¹⁷ = 106413137 is a prime.

It is a super-2 number, since 2×106544209² = 22703336942871362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (106544203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53272104 + 53272105.

It is an arithmetic number, because the mean of its divisors is an integer number (53272105).

Almost surely, 2^106544209 is an apocalyptic number.

It is an amenable number.

106544209 is a deficient number, since it is larger than the sum of its proper divisors (1).

106544209 is an equidigital number, since it uses as much as digits as its factorization.

106544209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 106544209 is about 10322.0254310867. The cubic root of 106544209 is about 474.0708840801.

The spelling of 106544209 in words is "one hundred six million, five hundred forty-four thousand, two hundred nine".