117021 has 8 divisors (see below), whose sum is σ = 164320. Its totient is φ = 73872.

The previous prime is 117017. The next prime is 117023. The reversal of 117021 is 120711.

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

It is not a de Polignac number, because 117021 - 2² = 117017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 116988 and 117006.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 117021.

It is not an unprimeable number, because it can be changed into a prime (117023) 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, 970 + ... + 1083.

It is an arithmetic number, because the mean of its divisors is an integer number (20540).

2¹¹⁷⁰²¹ is an apocalyptic number.

It is an amenable number.

117021 is a deficient number, since it is larger than the sum of its proper divisors (47299).

117021 is a wasteful number, since it uses less digits than its factorization.

117021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2075.

The product of its (nonzero) digits is 14, while the sum is 12.

The square root of 117021 is about 342.0833231831. The cubic root of 117021 is about 48.9126585133.

Adding to 117021 its reverse (120711), we get a palindrome (237732).

The spelling of 117021 in words is "one hundred seventeen thousand, twenty-one", and thus it is an iban number.