190117 has 4 divisors (see below), whose sum is σ = 194796. Its totient is φ = 185440.

The previous prime is 190097. The next prime is 190121. The reversal of 190117 is 711091.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25281 + 164836 = 159^2 + 406^2 .

It is a cyclic number.

It is not a de Polignac number, because 190117 - 2⁷ = 189989 is a prime.

It is a super-2 number, since 2×190117² = 72288947378, 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 = 190094 and 190103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2278 + ... + 2359.

It is an arithmetic number, because the mean of its divisors is an integer number (48699).

2¹⁹⁰¹¹⁷ is an apocalyptic number.

It is an amenable number.

190117 is a deficient number, since it is larger than the sum of its proper divisors (4679).

190117 is an equidigital number, since it uses as much as digits as its factorization.

190117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4678.

The product of its (nonzero) digits is 63, while the sum is 19.

The square root of 190117 is about 436.0240819037. The cubic root of 190117 is about 57.5007687358.

The spelling of 190117 in words is "one hundred ninety thousand, one hundred seventeen".