2112556 has 24 divisors (see below), whose sum is σ = 4003776. Its totient is φ = 971520.

The previous prime is 2112541. The next prime is 2112569. The reversal of 2112556 is 6552112.

It is a super-3 number, since 3×2112556³ = 28284333222748726848, which contains 333 as substring.

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, 2866 + ... + 3526.

It is an arithmetic number, because the mean of its divisors is an integer number (166824).

2^2112556 is an apocalyptic number.

It is an amenable number.

2112556 is a deficient number, since it is larger than the sum of its proper divisors (1891220).

2112556 is a wasteful number, since it uses less digits than its factorization.

2112556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729 (or 727 counting only the distinct ones).

The product of its digits is 600, while the sum is 22.

The square root of 2112556 is about 1453.4634498328. The cubic root of 2112556 is about 128.3126309815.

Adding to 2112556 its reverse (6552112), we get a palindrome (8664668).

The spelling of 2112556 in words is "two million, one hundred twelve thousand, five hundred fifty-six".