3081120 has 144 divisors (see below), whose sum is σ = 11376288. Its totient is φ = 698880.

The previous prime is 3081119. The next prime is 3081137. The reversal of 3081120 is 211803.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 3081120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23455 + ... + 23585.

It is an arithmetic number, because the mean of its divisors is an integer number (79002).

Almost surely, 2^3081120 is an apocalyptic number.

3081120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3081120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5688144).

3081120 is an abundant number, since it is smaller than the sum of its proper divisors (8295168).

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

3081120 is a wasteful number, since it uses less digits than its factorization.

3081120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 3081120 is about 1755.3119380896. The cubic root of 3081120 is about 145.5133606843.

Adding to 3081120 its reverse (211803), we get a palindrome (3292923).

It can be divided in two parts, 30 and 81120, that multiplied together give a square (2433600 = 1560²).

The spelling of 3081120 in words is "three million, eighty-one thousand, one hundred twenty".