2116172 has 6 divisors (see below), whose sum is σ = 3703308. Its totient is φ = 1058084.

The previous prime is 2116129. The next prime is 2116183. The reversal of 2116172 is 2716112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 264518 + ... + 264525.

It is an arithmetic number, because the mean of its divisors is an integer number (617218).

2^2116172 is an apocalyptic number.

It is an amenable number.

2116172 is a deficient number, since it is larger than the sum of its proper divisors (1587136).

2116172 is a wasteful number, since it uses less digits than its factorization.

2116172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529047 (or 529045 counting only the distinct ones).

The product of its digits is 168, while the sum is 20.

The square root of 2116172 is about 1454.7068433193. The cubic root of 2116172 is about 128.3857989037.

The spelling of 2116172 in words is "two million, one hundred sixteen thousand, one hundred seventy-two".