2117018 has 8 divisors (see below), whose sum is σ = 3342720. Its totient is φ = 1002780.

The previous prime is 2116997. The next prime is 2117039. The reversal of 2117018 is 8107112.

It is an interprime number because it is at equal distance from previous prime (2116997) and next prime (2117039).

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

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, 27818 + ... + 27893.

It is an arithmetic number, because the mean of its divisors is an integer number (417840).

2^2117018 is an apocalyptic number.

2117018 is a deficient number, since it is larger than the sum of its proper divisors (1225702).

2117018 is a wasteful number, since it uses less digits than its factorization.

2117018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55732.

The product of its (nonzero) digits is 112, while the sum is 20.

The square root of 2117018 is about 1454.9975944997. The cubic root of 2117018 is about 128.4029052503.

The spelling of 2117018 in words is "two million, one hundred seventeen thousand, eighteen".