2156112 has 160 divisors (see below), whose sum is σ = 7618560. Its totient is φ = 570240.

The previous prime is 2156111. The next prime is 2156117. The reversal of 2156112 is 2116512.

2156112 = 58³ + 59³ + ... + 66³.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2156111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69537 + ... + 69567.

It is an arithmetic number, because the mean of its divisors is an integer number (47616).

2^2156112 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 2156112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3809280).

2156112 is an abundant number, since it is smaller than the sum of its proper divisors (5462448).

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

2156112 is a wasteful number, since it uses less digits than its factorization.

2156112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78 (or 66 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 2156112 is about 1468.3705254465. The cubic root of 2156112 is about 129.1884751707.

The spelling of 2156112 in words is "two million, one hundred fifty-six thousand, one hundred twelve".