3085945 has 4 divisors (see below), whose sum is σ = 3703140. Its totient is φ = 2468752.

The previous prime is 3085931. The next prime is 3085949. The reversal of 3085945 is 5495803.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5495803 = 167 ⋅32909.

It can be written as a sum of positive squares in 2 ways, for example, as 1860496 + 1225449 = 1364^2 + 1107^2 .

It is a cyclic number.

It is not a de Polignac number, because 3085945 - 2¹⁵ = 3053177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3085945.

It is not an unprimeable number, because it can be changed into a prime (3085949) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 308590 + ... + 308599.

It is an arithmetic number, because the mean of its divisors is an integer number (925785).

Almost surely, 2^3085945 is an apocalyptic number.

It is an amenable number.

3085945 is a deficient number, since it is larger than the sum of its proper divisors (617195).

3085945 is an equidigital number, since it uses as much as digits as its factorization.

3085945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617194.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 3085945 is about 1756.6858000223. The cubic root of 3085945 is about 145.5892785095.

The spelling of 3085945 in words is "three million, eighty-five thousand, nine hundred forty-five".