106855009 has 2 divisors, whose sum is σ = 106855010. Its totient is φ = 106855008.

The previous prime is 106854983. The next prime is 106855019. The reversal of 106855009 is 900558601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64240225 + 42614784 = 8015^2 + 6528^2 .

It is a cyclic number.

It is not a de Polignac number, because 106855009 - 2⁵ = 106854977 is a prime.

It is a super-2 number, since 2×106855009² = 22835985896780162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (106855019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53427504 + 53427505.

It is an arithmetic number, because the mean of its divisors is an integer number (53427505).

Almost surely, 2^106855009 is an apocalyptic number.

It is an amenable number.

106855009 is a deficient number, since it is larger than the sum of its proper divisors (1).

106855009 is an equidigital number, since it uses as much as digits as its factorization.

106855009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 34.

The square root of 106855009 is about 10337.0696524692. The cubic root of 106855009 is about 474.5314071319.

The spelling of 106855009 in words is "one hundred six million, eight hundred fifty-five thousand, nine".