117115071 has 4 divisors (see below), whose sum is σ = 156153432. Its totient is φ = 78076712.

The previous prime is 117115039. The next prime is 117115073. The reversal of 117115071 is 170511711.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 117115071 - 2⁵ = 117115039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117115073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19519176 + ... + 19519181.

It is an arithmetic number, because the mean of its divisors is an integer number (39038358).

Almost surely, 2^117115071 is an apocalyptic number.

117115071 is a deficient number, since it is larger than the sum of its proper divisors (39038361).

117115071 is an equidigital number, since it uses as much as digits as its factorization.

117115071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39038360.

The product of its (nonzero) digits is 245, while the sum is 24.

The square root of 117115071 is about 10821.9716780261. The cubic root of 117115071 is about 489.2576166090.

Adding to 117115071 its reverse (170511711), we get a palindrome (287626782).

The spelling of 117115071 in words is "one hundred seventeen million, one hundred fifteen thousand, seventy-one".