2155116 has 12 divisors (see below), whose sum is σ = 5028632. Its totient is φ = 718368.

The previous prime is 2155103. The next prime is 2155121. The reversal of 2155116 is 6115512.

2155116 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 (12).

It is a junction number, because it is equal to n+sod(n) for n = 2155092 and 2155101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89785 + ... + 89808.

2^2155116 is an apocalyptic number.

It is an amenable number.

2155116 is an abundant number, since it is smaller than the sum of its proper divisors (2873516).

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

2155116 is a wasteful number, since it uses less digits than its factorization.

2155116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179600 (or 179598 counting only the distinct ones).

The product of its digits is 300, while the sum is 21.

The square root of 2155116 is about 1468.0313348154. The cubic root of 2155116 is about 129.1685795531.

The spelling of 2155116 in words is "two million, one hundred fifty-five thousand, one hundred sixteen".