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BaseRepresentation
bin11010101000111101
312112200101
4122220331
511442432
62201101
7633061
oct325075
9175611
10109117
1174a88
1253191
133a888
142baa1
15224e7
hex1aa3d

109117 has 4 divisors (see below), whose sum is σ = 114880. Its totient is φ = 103356.

The previous prime is 109111. The next prime is 109121. The reversal of 109117 is 711901.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 711901 = 4431607.

It is a cyclic number.

It is not a de Polignac number, because 109117 - 211 = 107069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 5743 = 109117 / (1 + 0 + 9 + 1 + 1 + 7).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 109094 and 109103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109111) 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, 2853 + ... + 2890.

It is an arithmetic number, because the mean of its divisors is an integer number (28720).

2109117 is an apocalyptic number.

It is an amenable number.

109117 is a deficient number, since it is larger than the sum of its proper divisors (5763).

109117 is an equidigital number, since it uses as much as digits as its factorization.

109117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5762.

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

The square root of 109117 is about 330.3286242517. The cubic root of 109117 is about 47.7856472025.

The spelling of 109117 in words is "one hundred nine thousand, one hundred seventeen".

Divisors: 1 19 5743 109117