117841 has 2 divisors, whose sum is σ = 117842.
Its totient is φ = 117840.
The previous prime is 117839. The next prime is 117851. The reversal of 117841 is 148711.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 77841 + 40000 = 279^2 + 200^2
It is an emirp because it is prime and its reverse (148711) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 117841 - 21 = 117839 is a prime.
Together with 117839, it forms a pair of twin primes.
It is not a weakly prime, because it can be changed into another prime (117811) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58920 + 58921.
It is an arithmetic number, because the mean of its divisors is an integer number (58921).
2117841 is an apocalyptic number.
It is an amenable number.
117841 is a deficient number, since it is larger than the sum of its proper divisors (1).
117841 is an equidigital number, since it uses as much as digits as its factorization.
117841 is an evil number, because the sum of its binary digits is even.
The product of its digits is 224, while the sum is 22.
The square root of 117841 is about 343.2797692845.
The cubic root of 117841 is about 49.0266410729.
The spelling of 117841 in words is "one hundred seventeen thousand, eight hundred forty-one".