106252309 has 2 divisors, whose sum is σ = 106252310. Its totient is φ = 106252308.

The previous prime is 106252297. The next prime is 106252327. The reversal of 106252309 is 903252601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68392900 + 37859409 = 8270^2 + 6153^2 .

It is a cyclic number.

It is not a de Polignac number, because 106252309 - 2⁵ = 106252277 is a prime.

It is a super-2 number, since 2×106252309² = 22579106335662962, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (106252339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53126154 + 53126155.

It is an arithmetic number, because the mean of its divisors is an integer number (53126155).

Almost surely, 2^106252309 is an apocalyptic number.

It is an amenable number.

106252309 is a deficient number, since it is larger than the sum of its proper divisors (1).

106252309 is an equidigital number, since it uses as much as digits as its factorization.

106252309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 106252309 is about 10307.8760663873. The cubic root of 106252309 is about 473.6375495365.

The spelling of 106252309 in words is "one hundred six million, two hundred fifty-two thousand, three hundred nine".