385750109 has 2 divisors, whose sum is σ = 385750110. Its totient is φ = 385750108.

The previous prime is 385750097. The next prime is 385750121. The reversal of 385750109 is 901057583.

It is a balanced prime because it is at equal distance from previous prime (385750097) and next prime (385750121).

It can be written as a sum of positive squares in only one way, i.e., 371332900 + 14417209 = 19270^2 + 3797^2 .

It is an emirp because it is prime and its reverse (901057583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 385750109 - 2⁴ = 385750093 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385750129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192875054 + 192875055.

It is an arithmetic number, because the mean of its divisors is an integer number (192875055).

Almost surely, 2^385750109 is an apocalyptic number.

It is an amenable number.

385750109 is a deficient number, since it is larger than the sum of its proper divisors (1).

385750109 is an equidigital number, since it uses as much as digits as its factorization.

385750109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 385750109 is about 19640.5221162779. The cubic root of 385750109 is about 727.9507857535.

The spelling of 385750109 in words is "three hundred eighty-five million, seven hundred fifty thousand, one hundred nine".