307085 has 4 divisors (see below), whose sum is σ = 368508. Its totient is φ = 245664.

The previous prime is 307079. The next prime is 307091. The reversal of 307085 is 580703.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 580703 = 17 ⋅34159.

It is an interprime number because it is at equal distance from previous prime (307079) and next prime (307091).

It can be written as a sum of positive squares in 2 ways, for example, as 103684 + 203401 = 322^2 + 451^2 .

It is a cyclic number.

It is not a de Polignac number, because 307085 - 2⁸ = 306829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 307085.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 307085.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 30704 + ... + 30713.

It is an arithmetic number, because the mean of its divisors is an integer number (92127).

2³⁰⁷⁰⁸⁵ is an apocalyptic number.

It is an amenable number.

307085 is a deficient number, since it is larger than the sum of its proper divisors (61423).

307085 is an equidigital number, since it uses as much as digits as its factorization.

307085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61422.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 307085 is about 554.1525060847. The cubic root of 307085 is about 67.4661924896.

Adding to 307085 its reverse (580703), we get a palindrome (887788).

The spelling of 307085 in words is "three hundred seven thousand, eighty-five".