2151120 has 40 divisors (see below), whose sum is σ = 6669216. Its totient is φ = 573568.

The previous prime is 2151119. The next prime is 2151137. The reversal of 2151120 is 211512.

2151120 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2151096 and 2151105.

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, 4242 + ... + 4721.

2^2151120 is an apocalyptic number.

2151120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2151120 is an abundant number, since it is smaller than the sum of its proper divisors (4518096).

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

2151120 is a wasteful number, since it uses less digits than its factorization.

2151120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8979 (or 8973 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 2151120 is about 1466.6696969666. The cubic root of 2151120 is about 129.0886956874.

Adding to 2151120 its reverse (211512), we get a palindrome (2362632).

The spelling of 2151120 in words is "two million, one hundred fifty-one thousand, one hundred twenty".