2190117 has 8 divisors (see below), whose sum is σ = 2957440. Its totient is φ = 1441440.

The previous prime is 2190107. The next prime is 2190131. The reversal of 2190117 is 7110912.

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

It is not a de Polignac number, because 2190117 - 2⁷ = 2189989 is a prime.

It is a super-2 number, since 2×2190117² = 9593224947378, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2190093 and 2190102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190107) 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, 4384 + ... + 4857.

It is an arithmetic number, because the mean of its divisors is an integer number (369680).

2^2190117 is an apocalyptic number.

It is an amenable number.

2190117 is a deficient number, since it is larger than the sum of its proper divisors (767323).

2190117 is an equidigital number, since it uses as much as digits as its factorization.

2190117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9323.

The product of its (nonzero) digits is 126, while the sum is 21.

The square root of 2190117 is about 1479.9043888035. The cubic root of 2190117 is about 129.8640986100.

The spelling of 2190117 in words is "two million, one hundred ninety thousand, one hundred seventeen".