3115120 has 40 divisors (see below), whose sum is σ = 7562016. Its totient is φ = 1191168.

The previous prime is 3115117. The next prime is 3115153. The reversal of 3115120 is 215113.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×3115120² = 19407945228800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3115120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 994 + ... + 2686.

Almost surely, 2^3115120 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3115120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3781008).

3115120 is an abundant number, since it is smaller than the sum of its proper divisors (4446896).

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

3115120 is a wasteful number, since it uses less digits than its factorization.

3115120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729 (or 1723 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 3115120 is about 1764.9702547069. The cubic root of 3115120 is about 146.0466480077.

It can be divided in two parts, 31 and 15120, that added together give a palindrome (15151).

The spelling of 3115120 in words is "three million, one hundred fifteen thousand, one hundred twenty".