385817105 has 4 divisors (see below), whose sum is σ = 462980532. Its totient is φ = 308653680.

The previous prime is 385817017. The next prime is 385817123. The reversal of 385817105 is 501718583.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 201753616 + 184063489 = 14204^2 + 13567^2 .

It is not a de Polignac number, because 385817105 - 2¹⁴ = 385800721 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38581706 + ... + 38581715.

It is an arithmetic number, because the mean of its divisors is an integer number (115745133).

Almost surely, 2^385817105 is an apocalyptic number.

It is an amenable number.

385817105 is a deficient number, since it is larger than the sum of its proper divisors (77163427).

385817105 is an equidigital number, since it uses as much as digits as its factorization.

385817105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77163426.

The product of its (nonzero) digits is 33600, while the sum is 38.

The square root of 385817105 is about 19642.2275977039. The cubic root of 385817105 is about 727.9929261328.

The spelling of 385817105 in words is "three hundred eighty-five million, eight hundred seventeen thousand, one hundred five".