2116155 has 16 divisors (see below), whose sum is σ = 3435264. Its totient is φ = 1112160.

The previous prime is 2116129. The next prime is 2116183. The reversal of 2116155 is 5516112.

It is not a de Polignac number, because 2116155 - 2⁵ = 2116123 is a prime.

It is a super-2 number, since 2×2116155² = 8956223968050, which contains 22 as substring.

It is an Ulam number.

2116155 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72 + ... + 2058.

It is an arithmetic number, because the mean of its divisors is an integer number (214704).

2^2116155 is an apocalyptic number.

2116155 is a deficient number, since it is larger than the sum of its proper divisors (1319109).

2116155 is a wasteful number, since it uses less digits than its factorization.

2116155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2066.

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

The square root of 2116155 is about 1454.7010002059. The cubic root of 2116155 is about 128.3854551124.

The spelling of 2116155 in words is "two million, one hundred sixteen thousand, one hundred fifty-five".