3120912 has 30 divisors (see below), whose sum is σ = 8734622. Its totient is φ = 1040256.

The previous prime is 3120907. The next prime is 3120919. The reversal of 3120912 is 2190213.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3111696 + 9216 = 1764^2 + 96^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (3120919) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10693 + ... + 10980.

Almost surely, 2^3120912 is an apocalyptic number.

It is an amenable number.

3120912 is an abundant number, since it is smaller than the sum of its proper divisors (5613710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3120912 is a wasteful number, since it uses less digits than its factorization.

3120912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21687 (or 21678 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 3120912 is about 1766.6103135666. The cubic root of 3120912 is about 146.1371077073.

The spelling of 3120912 in words is "three million, one hundred twenty thousand, nine hundred twelve".