3120105 has 16 divisors (see below), whose sum is σ = 5057280. Its totient is φ = 1642368.

The previous prime is 3120083. The next prime is 3120107. The reversal of 3120105 is 5010213.

It is not a de Polignac number, because 3120105 - 2¹⁷ = 2989033 is a prime.

It is a super-2 number, since 2×3120105² = 19470110422050, which contains 22 as substring.

It is a Curzon number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (3120107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132 + ... + 2501.

It is an arithmetic number, because the mean of its divisors is an integer number (316080).

Almost surely, 2^3120105 is an apocalyptic number.

It is an amenable number.

3120105 is a deficient number, since it is larger than the sum of its proper divisors (1937175).

3120105 is a wasteful number, since it uses less digits than its factorization.

3120105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2720.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 3120105 is about 1766.3818952877. The cubic root of 3120105 is about 146.1245106617.

Adding to 3120105 its reverse (5010213), we get a palindrome (8130318).

The spelling of 3120105 in words is "three million, one hundred twenty thousand, one hundred five".