100806269 has 2 divisors, whose sum is σ = 100806270. Its totient is φ = 100806268.

The previous prime is 100806247. The next prime is 100806289. The reversal of 100806269 is 962608001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 96786244 + 4020025 = 9838^2 + 2005^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100806269 is a prime.

It is a super-2 number, since 2×100806269² = 20323807739400722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100806289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50403134 + 50403135.

It is an arithmetic number, because the mean of its divisors is an integer number (50403135).

Almost surely, 2^100806269 is an apocalyptic number.

It is an amenable number.

100806269 is a deficient number, since it is larger than the sum of its proper divisors (1).

100806269 is an equidigital number, since it uses as much as digits as its factorization.

100806269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 100806269 is about 10040.2325172279. The cubic root of 100806269 is about 465.4030020760.

The spelling of 100806269 in words is "one hundred million, eight hundred six thousand, two hundred sixty-nine".