3120005 has 16 divisors (see below), whose sum is σ = 4327680. Its totient is φ = 2115072.

The previous prime is 3119999. The next prime is 3120011. The reversal of 3120005 is 5000213.

It is an interprime number because it is at equal distance from previous prime (3119999) and next prime (3120011).

It is a cyclic number.

It is not a de Polignac number, because 3120005 - 2⁸ = 3119749 is a prime.

It is a Curzon number.

It is a congruent number.

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, 2936 + ... + 3854.

It is an arithmetic number, because the mean of its divisors is an integer number (270480).

Almost surely, 2^3120005 is an apocalyptic number.

3120005 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3120005 is a deficient number, since it is larger than the sum of its proper divisors (1207675).

3120005 is an equidigital number, since it uses as much as digits as its factorization.

3120005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1028.

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 3120005 is about 1766.3535886113. The cubic root of 3120005 is about 146.1229495383.

Adding to 3120005 its reverse (5000213), we get a palindrome (8120218).

The spelling of 3120005 in words is "three million, one hundred twenty thousand, five".