30117 has 4 divisors (see below), whose sum is σ = 40160. Its totient is φ = 20076.

The previous prime is 30113. The next prime is 30119. The reversal of 30117 is 71103.

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.

It is not a de Polignac number, because 30117 - 2² = 30113 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30113) 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, 5017 + ... + 5022.

It is an arithmetic number, because the mean of its divisors is an integer number (10040).

2³⁰¹¹⁷ is an apocalyptic number.

It is an amenable number.

30117 is a deficient number, since it is larger than the sum of its proper divisors (10043).

30117 is a wasteful number, since it uses less digits than its factorization.

30117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10042.

The product of its (nonzero) digits is 21, while the sum is 12.

The square root of 30117 is about 173.5425019988. The cubic root of 30117 is about 31.1126666834.

The spelling of 30117 in words is "thirty thousand, one hundred seventeen".