117111278 has 8 divisors (see below), whose sum is σ = 175926168. Its totient is φ = 58469224.

The previous prime is 117111271. The next prime is 117111347. The reversal of 117111278 is 872111711.

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

It is a self number, because there is not a number n which added to its sum of digits gives 117111278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117111271) 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, 41501 + ... + 44232.

It is an arithmetic number, because the mean of its divisors is an integer number (21990771).

Almost surely, 2^117111278 is an apocalyptic number.

117111278 is a deficient number, since it is larger than the sum of its proper divisors (58814890).

117111278 is an equidigital number, since it uses as much as digits as its factorization.

117111278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86418.

The product of its digits is 784, while the sum is 29.

The square root of 117111278 is about 10821.7964312770. The cubic root of 117111278 is about 489.2523346980.

Adding to 117111278 its reverse (872111711), we get a palindrome (989222989).

The spelling of 117111278 in words is "one hundred seventeen million, one hundred eleven thousand, two hundred seventy-eight".