2166117 has 8 divisors (see below), whose sum is σ = 3013824. Its totient is φ = 1381248.

The previous prime is 2166113. The next prime is 2166119. The reversal of 2166117 is 7116612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2166117 - 2² = 2166113 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2166113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15628 + ... + 15765.

It is an arithmetic number, because the mean of its divisors is an integer number (376728).

2^2166117 is an apocalyptic number.

It is an amenable number.

2166117 is a deficient number, since it is larger than the sum of its proper divisors (847707).

2166117 is a wasteful number, since it uses less digits than its factorization.

2166117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31419.

The product of its digits is 504, while the sum is 24.

The square root of 2166117 is about 1471.7734200617. The cubic root of 2166117 is about 129.3879911807.

The spelling of 2166117 in words is "two million, one hundred sixty-six thousand, one hundred seventeen".