207105385 has 16 divisors (see below), whose sum is σ = 257682240. Its totient is φ = 159606720.

The previous prime is 207105361. The next prime is 207105401. The reversal of 207105385 is 583501702.

It is not a de Polignac number, because 207105385 - 2⁷ = 207105257 is a prime.

It is an unprimeable number.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74470 + ... + 77200.

It is an arithmetic number, because the mean of its divisors is an integer number (16105140).

Almost surely, 2^207105385 is an apocalyptic number.

It is an amenable number.

207105385 is a deficient number, since it is larger than the sum of its proper divisors (50576855).

207105385 is a wasteful number, since it uses less digits than its factorization.

207105385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3288.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 207105385 is about 14391.1564858423. The cubic root of 207105385 is about 591.6485399018.

The spelling of 207105385 in words is "two hundred seven million, one hundred five thousand, three hundred eighty-five".