117278 has 8 divisors (see below), whose sum is σ = 201072. Its totient is φ = 50256.

The previous prime is 117269. The next prime is 117281. The reversal of 117278 is 872711.

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

It is a congruent number.

It is an unprimeable number.

117278 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4175 + ... + 4202.

It is an arithmetic number, because the mean of its divisors is an integer number (25134).

2¹¹⁷²⁷⁸ is an apocalyptic number.

117278 is a deficient number, since it is larger than the sum of its proper divisors (83794).

117278 is an equidigital number, since it uses as much as digits as its factorization.

117278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8386.

The product of its digits is 784, while the sum is 26.

The square root of 117278 is about 342.4587566409. The cubic root of 117278 is about 48.9484394473.

Adding to 117278 its reverse (872711), we get a palindrome (989989).

The spelling of 117278 in words is "one hundred seventeen thousand, two hundred seventy-eight".