2117156 has 12 divisors (see below), whose sum is σ = 3768240. Its totient is φ = 1040520.

The previous prime is 2117147. The next prime is 2117179. The reversal of 2117156 is 6517112.

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 in 3 ways as a sum of consecutive naturals, for example, 4250 + ... + 4721.

It is an arithmetic number, because the mean of its divisors is an integer number (314020).

2^2117156 is an apocalyptic number.

It is an amenable number.

2117156 is a deficient number, since it is larger than the sum of its proper divisors (1651084).

2117156 is a wasteful number, since it uses less digits than its factorization.

2117156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9034 (or 9032 counting only the distinct ones).

The product of its digits is 420, while the sum is 23.

The square root of 2117156 is about 1455.0450164857. The cubic root of 2117156 is about 128.4056952149.

The spelling of 2117156 in words is "two million, one hundred seventeen thousand, one hundred fifty-six".