117801 has 8 divisors (see below), whose sum is σ = 174560. Its totient is φ = 78516.

The previous prime is 117797. The next prime is 117809. The reversal of 117801 is 108711.

It is not a de Polignac number, because 117801 - 2² = 117797 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117809) 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, 2155 + ... + 2208.

It is an arithmetic number, because the mean of its divisors is an integer number (21820).

2¹¹⁷⁸⁰¹ is an apocalyptic number.

It is an amenable number.

117801 is a deficient number, since it is larger than the sum of its proper divisors (56759).

117801 is an equidigital number, since it uses as much as digits as its factorization.

117801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4372 (or 4366 counting only the distinct ones).

The product of its (nonzero) digits is 56, while the sum is 18.

The square root of 117801 is about 343.2215028229. The cubic root of 117801 is about 49.0210932371.

It can be divided in two parts, 11780 and 1, that added together give a triangular number (11781 = T₁₅₃).

The spelling of 117801 in words is "one hundred seventeen thousand, eight hundred one".